Naomi Osaka joined several other big names in falling to a second-round exit at the Madrid Open, although Emma Raducanu cruised to a routine straight-sets win over Marta Kostyuk.

Four-time grand slam winner Osaka crashed to a resounding 6-3 6-1 loss to Spain's Sara Sorribes Tormo, exiting her first tournament on clay since the 2021 French Open, where she withdrew citing mental health issues.

Osaka, who had posted an underwhelming 20-15 record on the surface prior to this week, looked uncomfortable throughout and appeared to struggle with a leg injury during a disappointing second set display.

The 24-year-old was not the only high profile player to be on the receiving end of a shock during a day of drama in the Spanish capital, as several of the competition's seeds failed to secure places in the last 16.

Another home favourite, Garbine Muguruza, fell to a resounding loss of her own as Anhelina Kalinina raced to a 6-3 6-0 victory over the seventh seed, while sixth seed Danielle Collins was thrashed 6-1 6-1 by Canadian Bianca Andreescu.

Fourth seed Maria Sakkari was the highest-ranked player in action, and although the world number five won the first set of her clash with Daria Kasatkina, the Greek eventually fell to a 3-6 6-3 6-1 loss, while 2021 US Open runner-up Leylah Fernandez went down 6-4 6-4 to Jil Teichmann.

One big name who did make comfortable progress, however, was Fernandez's US Open conqueror Raducanu, who eased to a 6-2 6-1 win over Kostyuk to set up a last-16 encounter with another Ukrainian in Kalinina. 

The 19-year-old, who has been quoted as saying she believes clay could prove to be her best surface in the future, was delighted with her victory and enjoying the tournament after dropping just one game in the second set.

"I'm definitely happy with my performance," Raducanu said on court. "Marta's a great opponent - I knew it was going to be a really tough battle. I went out there trying to be really aggressive and it paid off.

"It's my first clay court season and I'm really enjoying it. Madrid is such a cool city and it's got such a great vibe about it. I definitely want to try and stay here for as long as possible."

Naomi Osaka was encouraged by her 2022 clay-court debut, winning her opening match at the Madrid Open against Anastasia Potapova.

The former world number one has not played on the red dirt since the 2021 French Open, where she withdrew citing mental health issues.

Heading into this week in Madrid, Osaka had an underwhelming 20-15 record on clay, with each of her grand slam successes coming on hard courts.

But the 24-year-old has spoken of adjusting her approach and learning from clay king Rafael Nadal – and the early signs were positive.

She needed just over an hour to defeat Potapova 6-3 6-1 on Friday and said: "I'm honestly trying to be more positive with myself.

"This year I came a week early to train on red clay, so I'm just trying to give myself more chances to do better.

Osaka added: "To be able to do it in two sets, for me, it's a really good starting block. 

"I think today for me it was really fun, just being able to be back on the clay and not taking those moments for granted."

Fellow hard-court major champions Emma Raducanu and Bianca Andreescu also won their openers, although the latter required three sets to eventually coast past Alison Riske 6-4 3-6 6-0.

Raducanu will play another 19-year-old in the second round, with the US Open champion paired with Marta Kostyuk after getting over a slightly slow start to thrash Tereza Martincova 7-6 (7-3) 6-0.

Fourth seed Maria Sakkari overcame a scare, meanwhile, ending her losing run at three matches by coming from behind to defeat Madison Keys in three sets.

"Overall, it was a very positive match to get myself back in the winning feeling," the Greek said.

Naomi Osaka believes teen tennis star Carlos Alcaraz has rejuvenated excitement around the ATP Tour, while she labelled Rafael Nadal as an inspiration ahead of the Madrid Open.

Alcaraz needed just 67 minutes to defeat Spanish compatriot Pablo Carreno-Busta 6-3 6-2 at the Barcelona Open last Sunday, claiming his third title of the season after wins in Rio de Janeiro and Miami.

The 18-year-old has surged to a career-high ninth in the world rankings, Alcaraz becoming the youngest player to crack the top 10 since fellow Spaniard Nadal achieved that feat at the same age in 2005.

Coincidentally, Nadal also broke into the top 10 after success on the same day (April 25) at the Barcelona Open and the pair will next compete in Madrid in the ATP 1000 Masters event, which starts on Sunday.

Former women's world number one Osaka revealed she is keen to cast an eye over the duo in the Spanish capital, where she faces a qualifier in the first round, as she hailed the impact Alcaraz has had.

"I feel like he's genuinely made everyone excited about the ATP and I haven't seen that in a very long time," Madrid Open wildcard Osaka said of Alcaraz, who boasts an impressive 23-3 record in the 2022 season.

"I'm not even really thinking about his age, like every time someone brings up his age, I'm like, 'Oh wow, I forget, that's so cool'.

"I think just his game style, just how pumped he is, how I feel like I'm watching him learn with every tournament.

"I don't know what his ranking was last year here, but I've watched almost every tournament that he's played, the US Open when he played [Stefanos] Tsitsipas and just to see the growth I think is really exciting for everyone."

Osaka has won all four of her grand slam titles on hard courts, but the 24-year-old will now search for clay-court success in Madrid.

Japanese Osaka has spent time preparing in Majorca, where she has used 13-time French Open winner Nadal as an inspiration, given his expertise on clay courts.

"I think I stole one of the things that he did and I've been practising it recently," she said of Nadal, who holds the record for most men's grand slam titles with 21 major triumphs to his name.

"It'll either go really good or really bad. There's like no in between. But I think as I've been doing it, it's been going pretty well.

"Honestly I've been wanting to watch the really good clay-court players practice because I feel like I'm the type of person that learns really fast if I see it up close and honestly it's a bit of a waste to have all these really good professional tennis players and not watch them."

Osaka suffered a second-round exit at the Indian Wells Masters in March, impacted by abuse from a heckler in the crowd, but rebounded by making the final in Miami, where she lost to world number one Iga Swiatek.

However, Osaka is looking to use the experience at Indian Wells, where she was reduced to tears by a spectator reportedly shouting "Naomi, you suck", as a learning curve to develop.

"I feel like there are a lot of moments in my career that are like extremely sad for me at the time but I kind of later look back on it and I think to myself, 'Well that really made me grow as a person, and even though I really hated the experience, I'm glad it happened to me'," she added.

"For me, that's one of those moments. I wish it didn't happen, but also I'm glad that it did.

"I feel like it prepared me for a lot of things that may or may not happen, but it's kind of like one of those things you have in your back pocket as experience."

Iga Swiatek scored a sensational win against Naomi Osaka in the Miami Open final and predicted it would mark "the start of a great rivalry".

A 6-4 6-0 victory for Swiatek means the new WTA number one has won three consecutive WTA 1000 titles, becoming the first player to do so at the beginning of a season.

Saturday's success sealed the 'sunshine double' as the 20-year-old captured the Indian Wells and Miami titles back to back, becoming the youngest player to achieve that feat, and only the fourth in history, after Steffi Graf, who did it twice, Kim Clijsters and Victoria Azarenka.

Addressing Osaka, Swiatek said: "I wanted to say I'm pretty glad we could play this match, and I think it's the start of a great rivalry.

"You're really an inspiration and this sport is better with you, so keep going."

Osaka is battling her way back into the sport after documenting her struggles with mental health and depression, and her ranking stood at 77 before this tournament.

She was reduced to tears in Indian Wells after being heckled by a spectator, and the Japanese star, a former WTA number one, referenced that incident in a post-match speech after losing to Swiatek.

Thanking her support team, Osaka said they were "the ones who keep pushing me forward after the things that happened two weeks ago – they're the rock that stays by my side".

Although Swiatek beat her resoundingly in the final, these two appear to be close allies, with a meal they enjoyed together in Australia in January 2020 having sparked a friendship.

"I want to congratulate Iga," said Osaka. "I was just thinking yesterday about when I had that dinner with you in Australia, and watching your journey is really incredible, and I hope you continue having fun. Apparently we're tied 1-1 now."

Osaka, who beat Swiatek in Toronto three years ago in their only past meeting, said her conqueror was "an incredible, amazing person", and assured her own supporters she had been having "a lot of fun".

"I hope I can keep working hard and get more opportunities to be in a situation like this again," Osaka added. "Just to be in the final means a lot to me."

That is both pertinent and refreshing given Osaka's future in tennis has appeared in doubt during the past year.

Swiatek, meanwhile, goes from strength to strength. From her French Open final triumph in October 2020 to this latest win, she has won each of the six finals she has contested. Across the last four, Swiatek has won four 6-0 'bagel' sets.

Doing the Indian Wells and Miami double, after previously taking the Doha title this year, shows Swiatek to be a worthy number one.

"I didn't think that was possible," she told Amazon Prime, assessing her back-to-back wins in America. "I'm trying to see what my limits are, and when I was coming from Indian Wells, I said to my coach, 'Did you ever have a situation like that where a player plays the final at Indian Wells and has to play the next match in three days?'. He said that I shouldn't worry and we can do it."

Swiatek's winning streak stands at 17 matches, her record for the season is 26-3, and she has won 20 consecutive sets. Her new number one status will be confirmed on Monday, when the newly retired Ash Barty is taken off the WTA list, and Swiatek hopes to stay there.

"We're going to see. The end of the season is still a long way," she said. "I hope I'm going to keep doing well with the pressure."

Iga Swiatek sealed the 'sunshine double' with a trouncing of Naomi Osaka as the new world number one added the Miami Open title to her Indian Wells triumph.

Twenty-year-old Swiatek will succeed the retired Ash Barty on top of the WTA rankings on Monday, and she has reached the top spot for the first time in staggering style.

A 6-4 6-0 victory against former number one Osaka in Saturday's final made Swiatek the first player to win the first three WTA 1000 events in a season.

Those are the highest value tournaments on the tour outside the grand slams, and Swiatek has chopped down the fields in Doha, Indian Wells and now Miami in staggering fashion.

Her winning streak stands at 17 matches, her record for the season is 26-3, and she has won 20 consecutive sets.

Swiatek set the tone for the match when she broke for a 3-2 lead in the opening set, whipping an exquisite backhand winner across court to seize the initiative.

She had a look-in next time around too, with Osaka doing well to fend off a break point and keep the Pole within touching distance.

The first set was secured when Osaka hoisted an aggressive forehand service return long, and that ramped up the pressure at the beginning of the second

In a flash, Swiatek earned herself three breakpoints, and although Osaka saved the first with a drive volley, the Japanese player sent a forehand into the net on the next point

Swiatek was displaying some startling shot-making, and a cross-court forehand winner in the third game was a thing of beauty, helping her establish a double break.

Osaka is battling her way back into the sport after documenting her struggles with mental health and depression, and her ranking stood at 77 before this tournament.

By reaching the final she proved her talent remains formidable, but Swiatek at present is on another level to her tour rivals, and a clinical sweep of the second set was complete when Osaka hooked a forehand wide.

Only three players had previously secured this back-to-back double in Miami and Indian Wells: Steffi Graf in 1994 and 1996, Kim Clijsters in 2005 and Victoria Azarenka in 2016. Swiatek is the youngest to achieve the feat.

Naomi Osaka is through to her first tournament final since her 2021 Australian Open win, getting past Belinda Bencic 6-4 3-6 6-4 at the Miami Open on Thursday.

The reigning Olympic champion looked strong early, breaking twice to go up 4-1 as she took advantage of Osaka's second serve, winning nine of the 11 second serves she saw in the opening set.

As Osaka's success on second serve cleaned up in the second set, Bencic's avenue to victory vanished, unable to save either of the two break points she faced in the second set.

Osaka's first serve percentage shot up to 70 in the deciding set, winning 87 per cent of points on first serve (20-23) to shut the door. Despite Bencic breaking back once after going down a double-break, she was unable to stop her Japanese opponent from serving it out.

Speaking on court after her win, the Florida native was emotional, shedding some tears as she thanked the fans in attendance.

"I just wanted to say thank you everyone, the atmosphere was really good," she said.

"Damn, I'm always crying. I just wanted to say thank you, this tournament really means a lot to me and it's my first time in the finals here."

World number-one-in-waiting Iga Swiatek twice came back from a break down in the second set to overcome the challenge of American Jessica Pegula 6-2 7-5.

The straight sets win for the 20-year-old Polish star means she has now not dropped a set in eight straight matches dating back to the fourth round at the Indian Wells Open where she beat Angelique Kerber two sets to one. 

Against Pegula, Swiatek was simply too strong in the opening set, breaking twice in four tries when Pegula's second serve was vulnerable, with the American only winning 27 per cent of her second serve points (4-15) in the opening frame.

The second set was far more competitive, but Swiatek remained just slightly better both on serve and in the return game in a set where four consecutive games resulted in breaks in a seesawing contest.

Pegula refused to let the top seed serve it out comfortably, saving two match points to extend the second set at 5-5. It was just delaying the inevitable as Swiatek broke back instantly and held her nerve, and serve, to avoid a tie-break.

Naomi Osaka will make her first Miami Open semi-final appearance after defeating Danielle Collins 6-2 6-1 on Tuesday.

The Florida native and the 2022 Australian Open finalist were worlds apart on serve, with Osaka putting up 13 aces, while Collins served seven double faults and had a meagre first-serve rate of 37.8 per cent.

While dropping only three games provides ample reflection, Osaka was in almost total control, winning 28 of 38 total points on serve and over half of the points on return with 26 out of 45. Her 25 winners to three unforced errors only reinforced the dominant nature of the win.

The Japanese former world number one has not dropped a set en route to the semi-final, and did not face a single break point against Collins, who called a medical time-out to address a neck issue after the first set.

"I'm glad I was able to get through quickly," Osaka said post-match. "I focused on trying to hit a lot of really good returns.

"This is actually my first night match too, so I didn't know what the conditions were going to be like."

Osaka will face reigning Olympic champion Belinda Bencic, who comfortably saw her way past Daria Saville with a 6-1 6-2 win.

The Tokyo gold medallist progressed to her first WTA 1000 semi-final since Madrid in 2019, needing just 69 minutes to defeat the unseeded Australian.

With Saville serving at 51 per cent for the match, Bencic was all over the second look, winning 18 of a total 23 points in those scenarios.

The critical element of the match was the Swiss 22nd seed's ruthlessness on break point, converting seven out of total eight times.

World number two Iga Swiatek showed why she is next in line to occupy the top ranking as she comfortably handled the challenge of 14 seed Cori Gauff 6-3 6-1 to earn a spot in the quarter-finals at the Miami Open.

Swiatek, 20, will become the first Polish-born man or woman to earn the number one singles ranking when it is next updated on April 4, after Ash Barty's retirement, and she never gave Gauff a chance.

She won all eight of her service games in the match, and broke Gauff's serve four times in eight chances to rattle off five consecutive games to close the match.

After a walkover in her last fixture, Naomi Osaka was strong on her way to a 6-3 6-4 win against Alison Riske.

Both women produced break points throughout the match, but while Osaka saved seven out of eight, coming back to double-break after her slip-up in the second set, Riske could only save nine of 12.

In a clash between top-10 seeds, Danielle Collins was terrific in her 6-2 6-4 win against Ons Jabeur.

The match was decided by each woman's success on their second serve, as Jabeur had the better first serve, but could only win 31 per cent of her second serves (8-26), while Collins was an even 73 per cent on both her first and second attempts.

Daria Saville continued her march back up the rankings with a 5-7 6-4 7-5 win against Lucia Bronzetti, making it nine wins from her past 10 matches for the Australian ranked 249 in the world after recently returning from a long-term achilles injury.

Saville will play Switzerland's Belinda Bencic after she breezed past Belarus' Aliaksandra Sasnovich 6-2 6-3, while Petra Kvitova got the better of higher-ranked Veronika Kudermetova 7-6 (7-5) 6-4.

American Jessica Pegula was nearly flawless on her way to a 6-0 first set before Ukrainian Anhelina Kalinina retired due to injury, while world number six Paula Badosa beat wildcard Linda Fruhvirtova 6-2 6-3.

Naomi Osaka moved into the fourth round at the Miami Open without even taking the court on Saturday, getting a walkover victory as Karolina Muchova withdrew.

The former world number one claimed straights sets victories coming into Saturday and had her run eased even further, with Muchova citing abdominal injury after almost five hours on court in her opening two matches.

Muchova has been sidelined due to the injury for the last seven months, missing the US Open in 2021 as well as the Australian Open this year.

"I'm sad that I cannot put up a battle against Naomi today." Muchova tweeted. "After a long break from tennis, two tough matches in [a] row have been a lot for my body and I need longer to recover."

While Lucia Bronzetti also won in a walkover, Osaka will face Alison Riske, who defeated fellow unseeded American Ann Li 6-2 3-6 6-3.

In her third match since losing to Ash Barty in the Australian Open final, Danielle Collins defeated Vera Zvonareva 6-1 6-4 in 78 minutes.

The American world number 11 has had to deal with numerous niggling injuries this season, including a viral illness that left her with significant neck pain.

"There was obviously an emotional moment for me, the pain I'm dealing with right now with this injury," she said post-match.

"Just trying to work through that, I think is one of the hardest things we go through mentally when we're on court."

Fellow seeds Belinda Bencic and Ons Jabeur also made their way through to the fourth round, defeating Heather Watson and Kaia Kanepi respectively.

Both won with relative comfort, with Bencic winning 6-4 6-1, and Jabeur only dropping three games in the opening set to triumph 6-3 6-0.

Naomi Osaka is through to the third round of the Miami Open after beating former world number one Angelique Kerber in straight sets.

Osaka won the first three games of the match to jump out to an early lead, securing the set with a double-break before breaking early in the second to cruise to a 6-2 6-3 win.

The story of the match was Osaka's ease in winning points against Kerber's serve, winning 41 per cent (15/37) of Kerber's successful first serves, while the German could only win 11 per cent (3/27) in the same category.

Britain's top-ranked woman Emma Raducanu suffered another early exit, on the wrong end of Katerina Siniakova's comeback 3-6 6-4 7-5 win.

Naomi Osaka looked relaxed and composed as she eased to a straight-sets win at the Miami Open, and offered a clue as to why when speaking to reporters afterwards.

The 24-year-old revealed she has started seeing a therapist after her recent loss at Indian Wells, where she suggested a heckler had affected her performance.

Osaka was left in tears as she struggled to deal with someone apparently shouting "Naomi, you suck!" during her second-round defeat to Veronika Kudermetova.

She also withdrew from Roland Garros last year, citing mental health concerns.

However, the three-time grand slam champion produced a strong display in her first round encounter in South Florida to beat Astra Sharma 6-3 6-4 on Wednesday.

"I don't know if I'm allowed to say this, but I finally started talking to a therapist after Indian Wells. It only took like a year after French Open," she told reporters after her win.

"She kind of told me strategies and stuff. I realise how helpful it is. I'm glad that I have people around me that told me to, like, go in that direction.

"But, yeah, I was basically just remembering all the things that she told me to do, just to take deep breaths and reset myself when I need to."

The world number 77 revealed it was partly her sister, former professional player Mari Osaka, showing concern that led her to seek out therapy.

"I feel like I've been trying a lot of different things because I tend to internalize things, and I also want to do everything by myself," Osaka clarified, adding that her coach, Wim Fissette, had also encouraged her to do so.

Osaka believes she is now better prepared to handle a similar situation to Indian Wells should it arise, having realised it may have been the first time she has been heckled during a game.

"I think for me, the situation in Indian Wells, I've kind of thought back on it. I realise I've never been heckled. I've been booed, but not like a direct yell-out kind of thing. It kind of took me out of my element.

"I feel like I'm prepared for it now. I was kind of bracing myself before the match to just know that's a thing that could happen now. I think I just needed to change my mindset a little."

Naomi Osaka moved to extinguish the painful memories from Indian Wells as she eased into the second round of the Miami Open.

The three-time grand slam champion, who was left in tears as she struggled to deal with a heckler during her second-round defeat to Veronika Kudermetova at Indian Wells, produced a composed display in South Florida to see off Astra Sharma 6-3 6-4.

Needing an hour and 20 minutes to defeat her Australian opponent, Osaka secured her 50th WTA 1000 win, one that sets up a battle of two former world number ones.

Osaka will next face Angelique Kerber, having kept her cool against Sharma despite converting just two of 11 break point opportunities and squandering three match points.

"I didn't want to let anything bother me, no matter what happened," Osaka said.

"The last match I played was not the greatest memory for me. I wanted to prove that I could come back out here and compete, and no matter if I won or lost, to just know that I had the best attitude I could."

Kerber promises to prove a much sterner test for Osaka, who has lost her last four matches against the German, having won their first encounter at the 2017 US Open.

Osaka's Japanese compatriot Misaki Doi crashed out in a straight-sets defeat to Vera Zvonareva, while promising teenager Clara Tauson retired in the third set of her match with Zhang Shuai.

Madison Brengle was among those to progress on Wednesday, continuing the theme of early American success.

Rafael Nadal sympathises with Naomi Osaka over the abuse she was subjected to at Indian Wells, but says athletes must be prepared to deal with it "as nothing is perfect in life".

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."

Andy Murray has expressed his sympathy for Naomi Osaka over the abuse she was subjected to at Indian Wells but says athletes must deal with it.

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."

An emotional Naomi Osaka says being targeted by a heckling spectator during her loss to Veronika Kudermetova reminded of abuse the Williams sisters were subjected to at the Indian Wells Open.

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

Serena and Venus Williams were subjected to verbal abuse at the prestigious tournament in the Californian desert back in 2001.

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

Former world number one Osaka said while trying to hold back the tears after her exit: "I've been heckled before and it didn't really bother me.

"But being heckled here... I've watched videos of Venus and Serena get heckled here and if you've never watched it, you should watch it.

"I don't know why, but it went into my head and got replayed a lot. I just want to say thank you and congratulations [to Kudermetova]." 

Serena Williams boycotted the competition for 14 years before making her Indian Wells return in 2015.