Indian Wells

Medvedev progressed to the quarter-finals for the first time at Indian Wells by coming from behind to defeat Zverev in three sets.

The 6-7 (5-7) 7-6 (7-5) 7-5 victory looked unlikely in the second set, when Medvedev hit the deck in obvious pain after turning his ankle.

It was subsequently taped by a physio, with Medvedev then coming through in three hours and 16 minutes, marking the longest three-set match of his career.

Medvedev has now won 17 matches in a row and is scheduled to face Alejandro Davidovich Fokina in the last eight.

But it is not yet clear whether he will be fit to play that match.

Speaking after the win over Zverev, Medvedev said: "When I twisted it, I thought I was going to stand up fine, then the pain started going fast, so I thought, 'oh no, that's not a good sign'.

"So, I honestly thought maybe one of the ligaments is a little bit injured, so I thought I'm not going to be able to play.

"That's probably one of the first times in my life where a physio taped my ankle, so I decided to give it a try, and it was very surprising. It was much easier to move and to run than to walk. When I was walking, I was limping, and then I was running fine.

"I can understand how frustrating it is for the opponent, but I was not faking it. It was tougher for me to walk.

"When the adrenaline goes down, the body cools down, it's going to be pretty painful, and I'm going to probably do a scan, see what it is and if I can continue to play."

Medvedev was beaten 4-6 6-3 6-1 by Frenchman Monfils, with the reigning US Open champion only able to connect on 50 per cent of his first serves, while he was broken three times in the decider.

For Monfils, the win earns him a spot in the fourth round against Carlos Alcaraz, while the loss means Medvedev will lose his position as world number one after only two weeks.

Speaking to post-match media, Medvedev said while he will work hard to earn the top-ranking back, starting in Miami next week.

"Is it better to be number one for, let’s say one week in your life, or never touch it?" he said. "I think it's still better to at least touch it.

"Now I know I'm going to lose it, so I have Miami to try to get it back. [I'm] usually feeling a little bit better in Miami in terms of tennis, so I'll try to play good there.

"I thought it could give me more motivation, well, I had motivation. It's just that I didn't find my best tennis."

The German, speaking ahead of the first Masters 1000 event of the year at Indian Wells, said his assault on the umpire's chair, for which he received a fine of $40,000 and a suspended eight-week ban from tennis, was a mistake he would not repeat.

The 24-year-old, who won the 2021 ATP Finals title last November, says he is still embarrassed by his actions in Mexico, having struck the umpire's chair with his racquet several times during a stunning outburst.

"It still is embarrassing for me now," Zverev said. "Walking around the locker room, it's not a nice feeling.

"But we all do mistakes. I'm also a human being, and I can guarantee you I will never act this way again in my life. 

"It was definitely the worst moment of my life."

Zverev will begin the Indian Wells Masters as the third seed, although world number two Novak Djokovic has been forced to withdraw from the competition due to his vaccination status.

The 24-year-old, who exited at the quarter-final stage of 2021's delayed edition of the tournament, says he has been working hard to avoid a repeat of his Acapulco meltdown and knows there is no room for error given his suspended ban.

"I've been doing work, meditation-wise," he said. "I think there are stress[ful] situations in everyone's life where stuff like this happens. I'm not the first and I won't be the last for something bad to happen on the court.

"I know who I am as a person, and this doesn't reflect me. I had played until 5am the day before – the same day I went back to play doubles.

"I am somebody that gives it his all on the court. I would have never physically harmed anyone.

"If I do that again, they have every right to ban me – it's as simple as that.

"If I do that again, it means I haven't learnt. I think everybody in life deserves a second chance, but if you repeatedly do mistakes it means that you haven't learnt."

The 37-year-old Frenchman has not played competitively since August last year due to injury but was eliminated by Thompson 6-3 6-1 in one hour and five minutes.

The Australian was ruthless, converting four of six break points generated, while he did not offer up any to Monfils.

Monfils was rusty, committing 17 unforced errors to Thompson's five, but the veteran hit 14 winners.

Thompson's victory earns him a second-round meeting with second seed Stefanos Tsitsipas.

Brandon Nakashima won the battle of the Americans, getting past John Isner 7-6 (9-7) 6-3 in one hour and 39 minutes. Nakashima progresses to face fifth seed Daniil Medvedev.

China's Wu Yibing produced some thrilling tennis, including an astonishing volley, in his 6-7 (6-8) 6-0 7-6 (7-3) victory over Jaume Munar.

World number 38 Diego Schwartzman won 6-1 6-2 over fellow Argentinian Federico Coria, while 47th-ranked Jiri Lehecka got past Arthur Rinderknech 7-6 (7-4) 7-5.

Australia's Jason Kubler toppled Lorenzo Sonego 6-4 7-6 (7-4) in almost two hours, while 42nd-ranked Bernabe Zapata Miralles was beaten 6-2 7-6 (8-6) by Ugo Humbert.

Finland's Emil Ruusovuori triumphed with Constant Lestienne retiring down 6-4 4-1 and world number 46 Alexander Bublik was a shock casualty, going down 6-4 6-4 to Wu Ting-Lin.

Muguruza, who claimed the Chicago Fall Tennis Classic, was surprisingly upstaged 6-3 1-6 6-3 by Australia's Ajla Tomljanovic in an upset on Saturday.

Tomljanovic had been 0-6 against top-10 players this year heading into the match but had just enough to edge the fifth seed and two-time grand slam champion with some timely breaks of serve. 

The world number 47 Tomljanovic is into the third round at Indian Wells for the first time in seven appearances and next faces 26th seed Tamara Zidansek. 

"I was really looking forward to playing Garbine, because I did lose [to her] the last couple of times," Tomljanovic said in her on-court interview. "I did try to focus on that one time I beat her [in 2014], and tried to channel that energy, so I was really happy that I got through today."

GOLUBIC STUNS SAKKARI

Sixth seed Sakkari – a semi-finalist at this year's French and US Opens – also fell victim to a shock result, going out 5-7 6-3 6-2 to Viktorija Golubic in their first meeting. 

The pair kept trading service breaks in the opening set, five in all, before Golubic tightened up her game for the final two sets. 

After breaking the Swiss three times in the first set, Sakkari converted just one of four break points the rest of the match. 

Golubic had lost in the first round in her previous two trips to Indian Wells but is now on to the third, where she will face Anna Kalinskaya.

ANDREESCU HOLDS OFF RISKE

Former US Open champion Bianca Andreescu saw a potential straight-sets win slip away before recovering to defeat Alison Riske 7-6 (7-2) 5-7 6-2.

Andreescu – the defending champion after the 2020 WTA Premier 1000 event was cancelled due to the coronavirus pandemic – led 4-1 in the second set but watched her advantage evaporate as Riske forced a decider, which the Canadian ended up taking comfortably as she faced only one break point in the last. 

Top seed Karolina Pliskova eased past Magdalena Frech 7-5 6-2, while third-seeded Barbora Krejcikova was pushed to a third set before prevailing 6-4 3-6 6-1 against Zarina Diyas. 

Angelique Kerber – the 10th seed and three-time major winner – went the distance to beat Katerina Siniakova 6-1 6-7 (4-7) 7-5, while 15th seed Coco Gauff downed Caroline Garcia 6-3 6-7 (2-7) 6-1 in her debut match at the tournament. 

Ons Jabeur, the 12th seed, prevailed 6-2 6-7 (5-7) 6-3 over Anastasija Sevastova and 18th seed Anett Kontaveit – Andreescu's next opponent – moved on when Martina Trevisan retired down 6-3 5-2. 

Last year, players from both nations were prevented from participating following Russia's invasion of Ukraine, the ban resulting in Wimbledon being stripped of ranking points.

Additionally, the Lawn Tennis Association (LTA) was fined £1.4million by the ATP and WTA due to players being excluded.

It is yet to be announced whether the ban will remain in place for this year's competition, though Murray expects there to be no such limitations.

"It's a really difficult one and I do feel for the players who weren't able to play last year – but I also understand the situation and why it's really hard for Wimbledon to make a call on it as well," he told BBC Sport.

"My understanding is that they are going to be allowed to play and I'm not going to be going nuts if that is the case.

"But if Wimbledon went down another route, I would be understanding of that."

Murray's comments came at Indian Wells, where he faces Tomas Etcheverry on Thursday, with the potential of an all-British affair against Dan Evans or Jack Draper in the third round.

Evans and Draper will face off in the second round if the latter beats Leandro Riedi, while Murray would have to defeat Etcheverry and Pablo Carreno Busta to set up a tussle with either of his compatriots.

But Murray insists he is not looking that far ahead.

"To be honest, I don't really care that much. Obviously, I can see why it's interesting, and if Evo [Evans] plays against Jack I'll be interested in the match," he added.

"But I'm not particularly bothered by it and for me it's not going to impact me until the third round. I need to get there and this is not always a tournament where I have played amazingly."

Murray, 34, began slowly but ground out a 1-6 6-2 6-4 win over a player he has faced three times in the early stages of this season.

The former rankings leader has bounced back into the ATP top 100 after career-threatening injury woes and is looking to push on from number 88, his current position.

He will play 31st seed Alexander Bublik next.

Murray was delighted to reach the 700-win mark, telling Amazon Prime: "It means a lot. It's a target I set myself towards the end of last year. With everything that's gone on in the last few years, it's not been easy to get there.

"It's a great achievement; not loads of guys have been able to do that, so I'm really happy about it."

The three-time grand slam winner becomes the fourth active men's player to reach 700 wins, after Roger Federer, Rafael Nadal and Novak Djokovic.

Murray was beaten by Daniel in the second round of the Australian Open before avenging that in the Qatar Open.

The Scot has 14 titles to his name from Masters 1000 events but surprisingly has never triumphed at Indian Wells, and he was given a thorough workout by qualifier Daniel.

Daniel dashed into a 5-1 lead, striking the ball more cleanly and moving better than Murray, who has recently agreed to bring Ivan Lendl on to his team for a third time.

The Japanese star had no trouble seeing out that opening set, but the second was dominated by Murray.

Daniel then won the opening eight points of the decider to surge 2-0 ahead, but Murray broke back in the sixth game. Murray saved break point at 4-4 and made Daniel serve to stay in the contest. That proved beyond the 29-year-old, with Murray carving out three break points and taking the third of those when Daniel sent a forehand long.

Murray said he took pride from the match because he "figured it out" after being outplayed early on.

He said Lendl had wished him luck before going on court, with the pair to begin working together after Murray plays the next event in Miami.

Osaka was reduced to tears as she crashed out of the Indian Wells Open with a 6-0 6-4 third-round defeat to 21st seed Veronika Kudermetova on Saturday.

A member of the crowd could be heard shouting "Naomi, you suck" after the four-time grand slam champion had been broken in the first game of the match.

Osaka approached the chair umpire to report the incident and held further discussions with the court supervisor after being insulted again.

Murray says there is no place for such conduct, but believes players must be able to ignore it.

He said: “It's a difficult one. I've often thought watching certain sports, I wouldn't say I've often seen it loads in tennis … but if I watch a football or a soccer match and a player's going to take throw-in or a corner kick and the crowd are just hurling insults at those individuals.

"I always think, how is that allowed? Like, you can't do that. If you're doing that to someone when you're walking down the street or in any other sort of work environment, that's obviously not tolerated.

"I've played in certain atmospheres as well myself in tennis, like Davis Cup atmospheres, away from home, especially where the atmosphere's intense, and sometimes things are said and it's not that comfortable.

"The people that come to watch, you want them to be there and supporting the players and not making it more difficult for them. I don't know, but it's also something that's always just kind of been part of sports as well."

He added: "If you go and watch a basketball match, for example, and a player's taking free throws, I would say like almost every basketball match I've been to one of the players has been heckled by the crowd as well

"While it's wrong for those individuals to be doing it, the athletes obviously have to kind of be used to that as well or be able to deal with that too, even though it's not pleasant.

"I feel for Naomi, that obviously it upset her a lot, but it’s always been something that's been part of sport, I guess, as well.

"You have to be prepared for that in some ways and be able to tolerate it because it does happen regularly across all sports."

Murray had been due to play Pablo Carreno Busta in the second round in California, only for the 15th seed to pull out with injury.

The three-time major champion instead defeated Albot in 6-4 6-3 for his first straight-sets victory of the season.

That sets Murray up to play fellow Briton Jack Draper in round three ahead of a potential round-four meeting with top seed Carlos Alcaraz, the best player in the draw after Novak Djokovic was unable to enter.

Murray was in complete control against Albot but played with nerves, explaining: "I didn't know if it was because of [the change of opponent].

"I was trying to give reasons for why I may have felt that way. I felt nervous on the court.

"A lot of the way that Radu plays and Carreno Busta plays is not too dissimilar, in terms of the way they like to play points and maybe where and how they like to serve.

"Obviously there are differences in their games, but it wasn't a huge change in terms of my game plan or what I was expecting going into the match.

"But maybe I felt like it was a good opportunity for me and that the draw had opened up slightly. I obviously wanted to try to finish the match quickly."

Yet those nerves are not a problem for Murray, who says he would rather play under that pressure.

"I generally much prefer feeling nervous when I play matches and feeling pressure," he said. "It just felt a bit out of sync with the situation. I was in, I guess, pretty decent control of the match.

"I was serving well, I was hitting the ball pretty well, but there was just more tension than probably there should have been out there on the court.

"But usually I prefer to feel nerves, providing they are in check. And maybe they weren't, for whatever reason.

"I would way rather feel more tension than feel flat, which is really never a good sign for me. If I wake up and I don't feel any of the butterflies or anything like that, it's generally a bad sign."

Nadal overcame a strong start and comeback from Nick Kyrgios to eventually win 7-6(6-0) 5-7 6-4 in the opening quarter-final, before Alcaraz beat defending champion Cameron Norrie 6-4 6-3.

The Spaniard extended his unbeaten run in 2022 to a staggering 19-0, but the win was not without its share of controversy against the fiery Kyrgios.

A shutout tie-break to end the first was followed by a fiery resurgence from Kyrgios, before he eventually collapsed in the third set and nearly hit a ball kid at the end of the match, when the 26-year-old smashed his racquet in frustration before it bounced up dangerously.

Similarly to his fourth-round win over Reilly Opelka, Nadal used all of his tactical nous to nullify Kyrgios’ serve and power, frustrating his opponent to eventually claim the victory.

"It's difficult to play against him [Kyrgios], always tough because he changes the dynamic of the point very quick and his serve is huge, especially the first serve," Nadal said afterwards.

"I think I played a good third set. Returning better, I was solid with the serve. I just suffered in one game with my serve.

"Nick is one of these kinds of players that you’re going to have problems when he’s motivated."

It was a carbon copy of recent matches between the two, with Nadal eventually waiting for Kygrios’ collapse and pouncing. He now leads their head-to-head battle 6-3.

The win set up an exciting match-up with Spanish starlet Alcaraz, who was brimming with confidence against Norrie in the night game.

The 18-year-old gave the Indian Wells defending champion problems with his characteristically flat two-handed backhand, before opening up the shoulders on the forehand side as the game progressed.

It made up for the fact he only won 59 percent of points on first serve, converting on five of his nine break point attempts.

His stroke play from the baseline was at times thrilling, particularly to set up 15-30 in the fourth game before immediately breaking Norrie back.

The fourth seed lifted in the final set to win 6-4 4-6 6-3 over 19th seed Alcaraz in three hours and 12 minutes, with Nadal to play American Taylor Fritz in Sunday's decider.

The match was played amid blustery conditions, particularly the second set, where debris flew on to the court regularly interrupting or delaying play, which appeared to impact Nadal more.

Alcaraz had more winners (41-24) but also more unforced errors (34-26), with Nadal finding another gear when it mattered in the final set.

Nadal's victory improved his record to 20-0 this season, earning him a fifth Indian Wells Masters final spot and his first since 2013. The Spaniard won the Indian Wells crown in 2007, 2009, 2013 and was runner-up in 2011.

The 35-year-old also clinched a berth in his 53rd Masters final, keeping him on track for a 37th title at this level. 

The 21-time major winner claimed the decisive break in the eighth game of the third set after a physio break for treatment on his back, before serving out to-love for victory.

"In the second, the conditions became crazy, honestly," Nadal said during his on-court interview. "It was not funny playing in this wind. In terms of tennis it was OK but in terms of stopping all the time, it was not good.

"In the third I think I played much better. I played much more aggressive. I am super happy. Being in the final means a lot to me."

Alcaraz had started the better to open up a 2-0 lead in the opening set, before Nadal responded emphatically.

There were five breaks in a row in the second set, including the Spanish teenager going ahead 5-4 after a game lasting almost 20 minutes, converting his seventh break point, before serving out the set.

As the conditions settled, Nadal showed more aggression, coming into the net with regularity before taking the key break in the eighth game.

American 20th seed Fritz reached his first ATP Masters 1000 final with a 7-5 6-4 victory over seventh seed Andrey Rublev in one hour and 50 minutes.

The California native is the first American male to reach the Indian Wells since John Isner in 2012.

"It's just unreal, really. It doesn't even seem real. I'm just trying to take in the moment, regroup and come back tomorrow for the final," Fritz said in his on-court interview. "But it's a dream come true."

"Today I definitely played my best match of the tournament so far. I was so much more aggressive from the ground and so much more solid [with] my ground strokes, whereas [in] other matches I was maybe playing a bit safer.

"I really tried to take it to him and impose my game today. I did it well, so that helped a lot."

Nadal displayed an abundance of tactical nous, nullifying the American’s big hitting and service game to emerge the 7-6(6-3) 7-6(7-5) winner.

Along with a 76 percent first-serve rate, Opelka hit more winners with 26 for the match, but the 35-year-old Spaniard was able to grind out points from the baseline with his trademark heavy topspin. As a result, Nadal’s winner/unforced error differential was +14 in comparison to Opelka’s +1.

"He is one of the toughest opponents on tour," Nadal said post-match. "It is very tough to control his weapons with his serve and forehand.

"I think I played my best match of the tournament so far today. I am very pleased with how I was able to win the match, with two difficult tie-breaks. This victory means a lot to me."

The highest ranked player left in the draw, Nadal will now face Nick Kyrgios, who progressed to the quarter-finals after Jannik Sinner withdrew with illness.

Matteo Berrettini made a shock exit, meanwhile, losing 6-3 6-7(5-7) 6-4 to unseeded Serbian Miomir Kecmanovic.

The Italian world number six was put under constant pressure, with Kecmanovic targeting his backhand and hovered the baseline to close the angles on serve.

The 22-year-old’s only other top 10 victory came against Alexander Zverev, also the world number six then, at Cincinnati in 2019. He will now face Taylor Fritz, who defeated Alex de Minaur 3-6 6-4 7-6(7-5).

Also on Wednesday, Grigor Dimitrov edged past John Isner 6-3 7-6(8-6). In his unique style, the Bulgarian 33rd seed came up with the shot of the day, flicking a forehand pass across the visibly stunned Isner.

He will face Andrey Rublev, who defeated Hurbert Hurkacz 7-6(7-5) 6-4. In Wednesday’s other results, Carlos Alcaraz Garfia comfortably defeated Gael Monfils 7-5 6-1, while Cameron Norrie accounted for Jenson Brooksby 6-2 6-4.

In the lead-up to the Indian Wells Open, the Spanish superstars will go head to head at the MGM Grand Garden Arena on March 5, it was announced on Tuesday.

The indoor venue has staged major fights featuring the likes of Mike Tyson, Floyd Mayweather, Canelo Alvarez, Manny Pacquiao and Tyson Fury.

Nadal, the record 22-time men's singles grand slam winner, will be facing current world number one Alcaraz in a clash of generations. Alcaraz does not turn 20 until May, while Nadal will be 36 in June.

The match will mark Alcaraz's return to action in the United States, six months after he triumphed at the US Open in New York to land a first slam title.

Already the youngest number one in ATP history, Alcaraz is expected to win many more majors, but he recently said he turns a "deaf ear" to comparisons between himself and Nadal.

"There is no point in comparing," Alcaraz told reporters. "It doesn't matter that now I am world number one, Rafa's entire career counts for a lot. It is a pleasure, for every tennis lover, to see Rafa on the court."

The Indian Wells action begins on March 8. Nadal beat Alcaraz in last year's semi-finals before losing to Taylor Fritz in the final, later revealing he played with a broken rib in the title match.

Nadal sustained the injury during his straight-sets defeat to Mackenzie McDonald at the Australian Open in January, struggling to move around the court during the closing stages of the contest in Melbourne.

A day after that match, the Spaniard wrote on Twitter: "I have carried out medical tests after the defeat yesterday. The MRI shows a grade two lesion in the iliopsoas of the left leg. Now it's sports rest and anti-inflammatory physiotherapy. Normal recovery time six to eight weeks."

It seems that Indian Wells, the first ATP Masters 1000 event of the season, has come too soon for the 36-year-old, and it remains to be seen if he will be able to compete at the Miami Open later in March.

The tournament's director, Tommy Haas, said on Tuesday: "We wish Rafa continued healing, and hope to see him back at the BNP Paribas Open next year."

Nadal reached the final of last year's tournament at Indian Wells, where he lost to American Taylor Fritz. 

He has won three titles at Indian Wells, but the last came back in 2013.

Osaka was reduced to tears as she crashed out of the Indian Wells Open with a 6-0 6-4 third-round defeat to 21st seed Veronika Kudermetova on Saturday.

A member of the crowd could be heard shouting "Naomi, you suck" after the four-time grand slam champion had been broken in the first game of the match.

Osaka approached the chair umpire to report the incident and held further discussions with the court supervisor after being insulted again.

While accepting there is no place for such conduct, 21-time grand slam winner Nadal believes players should learn to cope with hostile environments.

"These kind of questions are tough to answer because, in some way, the easy answer for me is I feel terrible about what happened, that never should happen," he told reporters.

"The real thing, in the real world, that happens, you know? I feel very sorry for her. We are having, in my opinion, a great life. 

"We are very lucky people that we're able to enjoy amazing experiences because of our life, because we are tennis players. We make money.

"Even if is terrible to hear from that, we must be prepared for that. We need to resist these kind of issues that can happen when you are exposed to people. 

"At the same time, as we like a lot when the people are supporting, when something like this happens, we need to accept and move forward.

"I understand that probably Naomi, she suffered a lot with his probably kind of issues that she has, mental [health] issues. 

"The only thing that I wish for her is to recover well from that and wish her all the very best. But nothing is perfect in this life. We need to be ready for adversities."

Speaking shortly after the incident, an emotional Osaka said being targeted by the spectator reminded her of abuse the Williams sisters were subjected to at the same event.

Serena and Venus Williams were the victims of verbal abuse at the tournament in the Californian desert back in 2001.

The siblings' father, Richard Williams, claimed he had been racially abused at Indian Wells, while Venus Williams said she "heard whatever he heard".

Daniil Medvedev, who will concede his status as world number one back to Novak Djokovic from next week, said he can relate to how Osaka felt after recently hitting out at the "disrespectful" crowd at the Australian Open.

"I didn't see it with my own eyes, and I didn't watch the videos after, so I just heard it from someone who heard from someone, so I don't want to go too much into it," he said.

"It's tough for everybody because I can feel for Naomi. I mean, I felt not great in Australia. 

"You know they're [the players] getting millions. They should be ready for everything. At the same time, we're humans. We all make mistakes, good decisions. 

"Sometimes we feel bad. Sometimes we feel good. I can understand that Naomi didn't feel that great when she heard it and I can completely understand her feelings.

"Life would be easier if everybody would be calm and not angry but, even talking about me, I get angry, so I should be better also."

The Polish world number one eased to victory 6-3 6-1 in one hour and 25 minutes over the 2021 US Open champion, who has enjoyed an improved run this week in California.

Swiatek offered few weaknesses in a strong disciplined display, converting four of 10 break points, including three in a one-way second set.

The three-time major winner won 88 per cent on her first serve while she was impressive on return and able to win the longer rallies. Swiatek hit 22-9 winners while Raducanu made 22-14 unforced errors.

Swiatek will take on Romania's Sorana Cirstea in the quarter-finals, after she upset fifth seed Caroline Garcia 6-4 4-6 7-5 in two hours and 24 minutes.

Reigning Wimbledon champion Elena Rybakina also progressed in that part of the draw, setting up a last-eight clash with unseeded Czech Karolina Muchova.

Rybakina won 6-3 6-0 over qualifier Varvara Gracheva in a similarly strong performance, needing only one hour and 21 minutes.  Muchova beat compatriot Marketa Vondrousova 6-4 6-7 (2-7) 6-4 in two hours and 37 minutes.

Third seed Jessica Pegula was the major casualty of the day's play, going down 6-2 3-6 7-6 (13-11) to 16th seed Petra Kvitova in a dramatic two-hour-and-16-minutes clash.

Pegula had opened up a 5-3 third-set lead and squandered a match point on serve, before two-time Wimbledon winner Kvitova squared it up at 5-5. Kvitova, however, was broken immediately to offer Pegula another chance to serve out the match again, which she was unable to take.

The American generated another three match points in the tie-break but could not convert before the Czech eventually prevailed on her own fourth match point, with the deciding set lasting one hour and 12 minutes.

Kvitova will face seventh seed Maria Sakkari in the quarters after she triumphed in a lengthy clash 6-4 5-7 6-3 over Karolina Pliskova, lasting two hours and 43 minutes.

Second seed Aryna Sabalenka also needed three sets to beat Barbora Krejcikova 6-3 2-6 6-4 in two hours and four minutes. Krejcikova had been responsible for Sabalenka's lone loss this season, in a 15-1 year.

Sabalenka, who won this year's Australian Open, will face sixth seed Coco Gauff who defeated Rebecca Peterson 6-3 1-6 6-4. Gauff won the last four games for victory, having trailed 4-2 in the deciding set.

The incident happened after Osaka had been broken by Kudermetova in the first game, with someone in attendance reported to have yelled "Naomi, you suck".

Four-time grand slam winner Osaka, competing in her first tournament since January's shock early Australian Open exit, appeared to ask the chair umpire to take action.

Osaka initially put that unneeded distraction behind her by taking the next point, but she wasted two break opportunities and Kudermetova successfully held to move 2-0 ahead.

The 24-year-old was in tears as she prepared to serve her next game and held further discussions with the court supervisor after going 3-0 down.

She could not recover and, after losing the first set 6-0, Osaka suffered the only break of serve in the seventh game of the second set to lose the contest fairly resoundingly. 

Kudermetova will now face Marie Bouzkova for a place in the last 16 after the Czech recovered to see off home hopeful Jessica Pegula 5-7 6-2 6-0.

Two-time champion Victoria Azarenka also made it through on Saturday with a 6-3 7-5 victory over lucky loser Astra Sharma, setting up a meeting with Elena Rybakina.

Leyla Fernandez saved four match points against Amanda Anisimova in a dramatic match that came to an end when the American retired through illness.

After losing the opener 6-2, Fernandez took the second set to a tie-break but felt unable to continue. Anisimova will meet Shelby Rogers in a rematch of last year's last-16 encounter.

Four-time major winner Osaka has not played competitively since her 2022 Australian Open third-round exit to Amanda Anisimova in January.

The Japanese, whose ranking has dropped to 78th, had been handed a wild card for Indian Wells but was upgraded to the main draw after Camila Giorgi's withdrawal.

The Indian Wells draw was made on Monday with Osaka to face Stephens who won her first WTA title since 2018 with last month's Abierto Zapopan crown.

The top seeds all have been waived through to the second round with top seeds Barbora Krejcikova and Aryna Sabalenka book-ending the draw.

Osaka was in action for the first time since a shock early exit at the Australian Open in January, but she ultimately had too much for Stephens in a 3-6 6-1 6-2 success.

Stephens initially looked the sharper of the two former major champions in the second-round clash, impressively taking a first-set lead, but Osaka found her groove after a slow start to level the contest.

Osaka then had to save three break points at 2-0 down in the decider, and that appeared to inspire another surge as she rattled off six successive games to roar to an emphatic win.

Shelby Rogers got past Nuria Parrizas-Dias in almost three hours, winning 6-1 5-7 7-6 (7-3), and last week's Monterrey Open runner-up Camila Osorio retired down 6-4 5-0 against Aliaksandra Sasnovich.

Yulia Putintseva got past Ashlyn Krueger 6-3 6-2 and Ukraine's Marta Kostyuk won in three hours and nine minutes over Maryna Zanevska 6-7 (5-7) 7-6 (8-6) 7-5.

Last month's Abierto Zapopan runner-up Marie Bouzkova eased past China's Wang Qiang 6-3 7-6 (7-5), while American Amanda Anisimova defeated compatriot Emma Navarro 6-2 6-2.

Naomi Osaka bounced back from her defeat at Indian Wells by claiming a hard-fought victory over Yuliia Starodubtseva in Miami.