Emma Raducanu was bundled out of the Miami Open in the first round by form US Open champion Bianca Andreescu in a three-set match that lasted two hours and 35 minutes on Wednesday.

The Briton, who won the US Open in 2021, went down 6-3 3-6 6-2 in a genuine tug-of-war against the 31st-ranked Canadian.

Andreescu sent down seven aces for the match, including four in the first set along with 12 winners as she claimed an early lead.

Raducanu responded with greater aggression, securing the crucial break in the eighth game, before serving out to level the contest.

But Andreescu showed composure and quality in the big points in the final set, winning the final four games to round out the victory, sealing a second-round clash with seventh seed Maria Sakkari.

Andreescu finished with 32 winners compared to Raducanu's 20, while the Briton committed 40 unforced errors.

World number 42 Shelby Rogers edged out USA compatriot Sloane Stephens in just under two hours, winning 6-4 3-6 6-2. Rogers will take on second seed Aryna Sabalenka, who is arguably the tournament favourite after top seed Iga Swiatek's withdrawal, in the next round.

Rogers was one of five Americans to progress, including 2020 Australian Open champion Sofia Kenin who defeated Australia's Storm Hunter 6-0 7-6 (7-5).

World number 35 Amanda Anisimova retired down 7-6 (7-5) 5-2 to countrywoman Madison Brengle.

Leylah Fernandez, the player whom Raducanu beat in the 2021 US Open final, advanced into the second round with a 6-4 6-3 victory over Lesia Tsurenko in 88 minutes.

Iga Swiatek has withdrawn from the Miami Open with a rib injury.

The world number was due to defend her title, having won the tournament last year without dropping a set.

However, she will be unable to feature in Florida due to an ongoing rib issue that has plagued her since the Qatar Open in February.

Swiatek reached the semi-finals of the Indian Wells Open last week, losing to eventual champion Elena Rybakina, and hinted at concerns over her condition.

The Pole confirmed on Wednesday that after consulting with her medical team, she will not play her second-round match against Claire Liu on Thursday and will also miss the Billie Jean King Cup, which takes place in April.

"You know that in and after Doha I was struggling with a strong infection," Swiatek said. 

"I was allowed to play, but a strong episode of tough cough led to a rib injury. We were trying to handle it and continue to play as long as it was safe for me. We were analysing the data in the last [few] days and my doctor prepared my diagnosis.

"Unfortunately, I'm still feeling a lot of discomfort and pain and I can't compete.

"I will keep you updated about where I play next, because it depends on my process of recovering and the recommendation of my medical team. 

"I have the best team behind me, we only need some time to deal with the injury. It's a truly difficult call to not play in Miami and the Billie Jean King Cup, but health is the most important [thing].

"I'm grateful this is the first health issue in a long time and I was able to compete in perfect shape for so long, but that's sports, it happens sometimes, without our control. 

"Time to accept it and get well as soon as possible."

Swiatek will be replaced in the women's draw by lucky loser Julia Grabher.

The 21-year-old will now hope to be fully fit in time for the clay-court season, including the French Open, where she is the reigning champion.

Aryna Sabalenka received "hate" in the dressing room after Russia's invasion of Ukraine.

Sabalenka finished as runner-up at Indian Wells last week, losing to Elena Rybakina, who she defeated in the Australian Open final in January.

Born in Belarus, an ally of Russia, the 24-year-old revealed ahead of her Miami Open campaign that "weird conversations" had come from members of other players' teams, rather than her fellow pros.

"It was really tough for me because I've never faced that much hate in the locker room," she said. "There are a lot of haters on Instagram when you're losing matches, but in the locker room I've never faced that.

"I had some, not like fights, but I had some weird conversations with, not the girls, but with members of their team. It was tough. It was a tough period. But now it's getting better.

"It was really tough to understand that there's so many people who hate me for no reason. I did nothing."

Players from Russia and Belarus have been classed as neutral since the invasion, and were banned from last year's Wimbledon.

Ukraine's Lesia Tsurenko pulled out of her match against Sabalenka at Indian Wells after suffering a panic attack following a conversation she had with WTA chief executive Steve Simon about tennis's response to the invasion.

World number one Iga Swiatek had called for greater support for Ukrainian players as a result of the conflict but another Belarusian, Victoria Azarenka, disagreed.

"There are certain players that have different feelings and behaviours. Overall, I don't necessarily share the same opinion as Iga does," Azarenka said.

"I'd encourage her to look at the things that have been done before she makes comments. As a player council member I'm happy to provide the facts. That would be a more appropriate way to have that conversation."

Camila Giorgi progressed into the Miami Open second round despite blowing a 5-0 third-set lead as she edged past veteran Kaia Kanepi in the equal-longest main draw match of the year on Tuesday.

The Italian world number 44, who won February's Merida Open, outlasted the Estonian 7-6 (7-4) 6-7 (4-7) 7-6 (7-4) in three hours and 32 minutes.

The length was equal to the Erika Andreeva-Harriet Dart first-round match at the ATX Open last month for the longest this WTA season.

But Giorgi could have had an earlier finish, leading 5-0 in the decider before Kanepi hit back by winning the next five games, only for the Italian to rally in the tie-break, converting her fourth match point.

Giorgi, who blew match points at 5-3 and 5-4, will take on three-time Miami Open winner and 2023 Australian Open semi-finalist Victoria Azarenka in the second round.

Russian 34-year-old Evgeniya Rodina produced the upset of the day's play, beating 37th-ranked Bernarda Pera 6-3 6-4 in 73 minutes and will take on 20th seed Magda Linette in the second round.

Rodina is currently ranked 369th in the world having returned to the WTA Tour midway through last season after a two-year absence, having reached a career-high 67th in May 2019.

World number 39 Elise Mertens eased into the second round with a 6-1 6-4 win over USA's Alycia Parks, setting up a second-round clash with eighth seed Daria Kasatkina.

World number 43 Yulia Putintseva bowed out prematurely, going down 7-6 (7-4) 6-2 to Canada's Rebecca Marino, who advanced to face sixth seed Coco Gauff.

Teenager Linda Fruhvirtova, ranked 50th in the world, also suffered a shock loss, beaten 6-2 4-6 6-4 by 172nd-ranked Canadian qualifier Katherine Sebov, while Laura Siegemund won 6-3 6-4 over 52nd-ranked Mayar Sherif

Katerina Siniakova withdrew due to injury despite winning the first set against USA's Claire Liu, with scores at 6-3 3-3. Liu's prize is a second-round meeting with top seed and reigning champion Iga Swiatek.

Iga Swiatek is unsure whether she will be fit to defend her Miami Open title after a rib injury hampered the world number one during a semi-final defeat at the Indian Wells Open.

A savage 6-2 6-2 thrashing at the hands of Wimbledon champion Elena Rybakina came while Swiatek was suffering physically.

She was emphatically outplayed, and how much of a factor the injury was is unclear, with tests in the coming days set to dictate what happens next for the 21-year-old Pole.

Swiatek was asked about what Rybakina did well and said: "I feel like it's still more me and my mistakes. I'm also not feeling 100 per cent physically. I have a little discomfort in my rib, and we're going to consult with the medical team."

She said she would use the days leading up to next week's event in Miami as a chance to recover.

"In terms of the rib, we'll see, because I still have to run some tests and see what's going on. I don't know yet," she said after Friday's defeat.

"Honestly, I haven't played with a lot of injuries. It's a new situation for me. The last time I played with an injury, the only tournament I can remember, is Roland Garros in 2019, so I was pretty young.

"Now it's a totally different level. I have been playing, so there has been some fatigue all the time. I would say it's kind of constant, but I'm pretty sure that tomorrow or the day after will help in recovery."

Asked whether it was a problem that could prevent her playing in Miami, Swiatek said: "No, for now I'm preparing to play, but we'll see what the next days are going to tell us. I don't know yet."

Swiatek last year won both Indian Wells and Miami to complete the 'Sunshine Double' in the early stages of a 37-match winning run that ended with a third-round Wimbledon defeat to Alize Cornet.

While Swiatek seeks medical expertise, Rybakina goes on to face Aryna Sabalenka in Sunday's Indian Wells trophy match, a repeat of the Australian Open final that Sabalenka won to earn a first grand slam singles title.

It is the third time this century that the WTA Indian Wells showpiece match has featured the same line-up as the Melbourne Park final after 2000 (Lindsay Davenport and Martina Hingis) and 2012 (Maria Sharapova and Victoria Azarenka).

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.

Iga Swiatek progressed to her fourth WTA 1000 semi-final on Wednesday at the Miami Open, defeating Petra Kvitova 6-3 6-3.

After taking out tournaments in Doha and Indian Wells this year, the 20-year-old's undefeated streak now moves to 15 in a row.

Kvitova largely stayed in points in the opening exchanges and held a higher first-serve rate than Swiatek, but indicative of the form the Polish star is currently in, she played with clarity and did not hesitate when opportunities presented.

Along with winning six of eight points on Kvitova's second serve in the first set, the soon-to-be world number one converted on her sole chance at break point, claiming the crucial break in the sixth game before closing the opening set out.

After a tough service hold in the fourth game and four initial chances at break point in the second set, Swiatek made it count on her fifth attempt, spectacularly managing to move the 28th seed around the court and turn defence into attack.

Seeing the finish line, the Polish second seed grew increasingly assertive in both serve and shot selection to both secure the break and see out the match, even claiming a second break for a punctuation mark.

Swiatek will face Jessica Pegula, who is also through to the semi-finals after Paula Badosa retired from their matchup due to a viral illness.

Pegula was leading 4-1 after only 18 minutes of play when Badosa retired, having won four straight games after initially dropping her serve.

The 28-year-old has now won her last two matches in Miami via retirement after she advanced past Anhelina Kalinina in the fourth round, winning the first set 6-0.

If Pegula defeats Swiatek in the semi-final, it would make for her maiden WTA 1000 final appearance.

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.

Victoria Azarenka says she regrets beginning her Miami Open match against Linda Fruhvirtova after retiring during the second set of the third-round encounter.

The former world number one blamed an "extremely stressful" time in her personal life for the withdrawal, calling her decision to play a "mistake" and pledging to learn from the incident.

Azarenka was trailing 6-2 3-0 against 16-year-old Czech Fruhvirtova when she abruptly ended the match, having earlier shouted "why am I here?" at her coaching team.

The two-time Australian Open champion also broke down in tears after her third-round defeat to Elena Rybakina at Indian Wells earlier this month, deleting her social media accounts in the aftermath.

Via a statement released after her retirement from the tournament, the Belarusian said she should not have gone onto the court to face Fruhvirtova, blaming an "extremely stressful" time in her personal life for the incident.

"I shouldn't have gone on the court today," the 32-year-old said.

"The last few weeks have been extremely stressful in my personal life. 

"[My] last match took so much out of me, but I wanted to play in front of a great audience as they helped me pull through my first match.

"I wanted to go out there and try but it was a mistake. I always look forward to the challenge and pressure of competition but today it was too much. 

"I have to and will learn from this."

As a Belarusian, Azarenka has had to compete as a neutral player since her country's regime helped enable the Russian invasion of Ukraine, with the participation of sportspeople from the two countries being a subject of intense discussion.

Iga Swiatek was in a ruthless mood as she coasted into the last 16 of the Miami Open, setting up an intriguing clash with Coco Gauff.

Swiatek was in action for the first time since ensuring she will be top of the pile after the next WTA rankings update, and she certainly showed world-number-one form against Madison Brengle in a 6-0 6-3 victory.

The 20-year-old Pole needed just 25 minutes to win the opening set, during which she hit 12 winners to Brengle's one.

Brengle gave a better account of herself in the second set but Swiatek still had far too much for her, with the latter remaining on course to become only the fourth woman to win the so-called 'Sunshine Double' of Indian Wells and the Miami Open.

But certain expectations – particularly those relating to her ranking – are not what Swiatek wants to think about at the moment, especially while she is so content out on the court.

She said: "I know the ranking can be pressure, but on the other hand when I was climbing up and I entered top 10 and top five, I felt the same feeling, and right now I don't want to repeat that. So I just focus on my game.

"I don't know what's going to happen after the tournament and the adrenaline will go down and I have more time to stress about that a little bit more, but for now I feel great. It's not like it's bothering me, it's more motivating me. So it's great."

Gauff, competing in her local tournament, awaits after showing admirable spirit to beat Zhang Shuai 7-6 (7-1) 7-5.

The 18-year-old had to save two set points in the opener before rallying back and producing a devastating display in the tiebreaker.

She then came back from 4-2 down in the second, winning five of the final six games to seal a hard-fought victory.

Another teenager hoping to leave a lasting impression is 16-year-old Linda Fruhvirtova, who became the youngest player to reach the fourth round in Miami since Maria Sharapova and Tatiana Golovin in 2004 – both were also 16.

Fruhvirtova was 6-2 3-0 up over Victoria Azarenka before the three-time Miami Open winner retired, giving the youngster her first top-20 scalp.

Jessica Pegula, Petra Kvitova and Paula Badosa were among the others to secure their progression on Sunday.

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.

Robert Lewandowski joined skiing greats Lindsey Vonn and Mikaela Shiffrin in saluting Iga Swiatek for earning the number one ranking in women's tennis for the first time.

At the age of 20, Swiatek guaranteed she will top the WTA list after the Miami Open by beating Viktorija Golubic 6-2 6-0 in her opening match at the event.

Swiatek will replace Ash Barty, whose shock retirement will see the Australian drop off the ranking ladder entirely when it is next published on April 4.

Since a shock French Open victory in October 2020, when the unseeded Swiatek stormed through the draw without dropping a set, the Polish youngster has continued to make a major impact.

She reached at least the fourth round of all the grand slams last year and was a semi-finalist at the 2022 Australian Open, before victory at WTA 1000 events in Doha and Indian Wells propelled her to number two in the rankings.

Now she will climb a step higher, and that news has proven popular with Swiatek's supporters, who include a number of illustrious names.

Fellow Polish sporting star Lewandowski, who is rewriting goalscoring records in Germany with Bayern Munich, sent his compatriot a message on Instagram that read simply: "Congratulations Iga. Well done."

Swiatek is a huge admirer of Americans Vonn and Shiffrin, who have both landed World Championship and Olympic gold medals on the slopes, and the respect is mutual.

Vonn told Swiatek her achievement was "So deserved!!", and Shiffrin posted: "Congrats Iga!!"

Former WTA number one Kim Clijsters, who was also 20 when she first hit the top spot in 2003, felt it was a natural next step for Swiatek to move up a rung and become the 28th top-ranked player in the tour's history. Swiatek will also be the first Pole to sit at the summit.

Clijsters said: "To see Iga grow as a tennis player, it has been so beautiful for me. There's a certain type of focus that is on tennis, and tennis only. There's a drive there that I admire very much – a drive that I recognise."

Belgian Clijsters, quoted on the WTA website, added: "She's had great results in the past, but she still wants to improve. We've seen others that kind of take a step back and say, 'Oh, I've won a slam now, I've made it. There's sponsors coming in and I get treated like a princess wherever I go'.

"Just because you’re the number one player and have won slams, doesn't mean you should treat other people differently. I feel like Ash Barty did that amazingly, and I think Iga has that focus, too."