World number two Daniil Medvedev has pulled out of the Monte Carlo Masters after returning a positive coronavirus test.

The Russian, who was given a bye for the first round, went into isolation after returning a positive test on Monday.

"It's a big disappointment not to play in Monte Carlo," he said in a statement. "My focus is now on recovery and I look forward to getting back out on Tour as soon and as safely as possible."

Medvedev, who lost the Australian Open final to Novak Djokovic in January, had been practising with 11-time Monte Carlo champion Rafael Nadal on Monday.

The 25-year-old last played at the Miami Open at the end of March, where he lost in the quarter-finals to Roberto Bautista Agut.

Rain curtailed much of Monday's schedule at the Monte Carlo Masters but it could not prevent Aslan Karatsev from continuing his hugely impressive start to the season.

Karatsev, a surprise Australian Open semi-finalist and a champion in Dubai last month, overcame Lorenzo Musetti, the Italian teenager who was a semi-finalist in Acapulco in March, in straight sets after a four-hour rain delay.

He went into that interruption with a 4-3 lead in the first set and duly polished off the next two games on his return to the court.

The Russian sent down 23 winners as he completed a 6-3 6-4 win in 88 minutes, his last a cross-court backhand that set up a second-round meeting with Stefanos Tsitsipas.

"It was a really tough match [for] my first match of the season on clay [with] tough weather conditions," said Karatsev.

"We started in the morning [and] I started pretty well, I broke him and then the court was getting heavy, the ball was heavy.

"It is tough to play against him. [He is] really fit, [he] runs a lot and gives everything back, so you have to build the point by yourself and close the point by yourself."

There were mixed fortunes for Australians Alex de Minaur and John Millman in Monaco.

De Minaur went down to a surprise straight-sets defeat to Alejandro Davidovich Fokina but Millman broke Ugo Humbert four times in a 6-3 6-3 win.

Next for Millman is either Felix Auger-Aliassime or Cristian Garin, whose first-round contest was among those unable to finish because of the inclement weather on the Cote d'Azur.

Tommy Paul also progressed to the next round, with five matches on court when play was cancelled for the day.

David Goffin made an encouraging start to the Monte Carlo Masters as he beat Marin Cilic, though Jordan Thompson found things much harder against Benoit Paire.

World number 14 Goffin had lost his previous three matches heading to Monaco, but the Belgian delivered a sharp performance on Sunday, winning 6-4 3-6 6-0.

Open Sud de France champion Goffin did not start well, and had to come from 3-0 down in the first set, but Cilic made 52 unforced errors to help his opponent progress.

"It’s a good win. [This is my] first tournament on clay [in 2021]. Starting with a victory is good," said 2017 Monte Carlo semi-finalist Goffin, quoted on the ATP website.

"I did what I needed to do to win that match. I was playing better and better. In the first and second set, I had problems with the returns. In the third set, I was more consistent. It was a good match."

Goffin will face Marco Cecchinato or Dominik Koepfer in the second round, where he has been joined by Australian Jordan Thompson.

Thompson, the world number 62, needed three hours and two tie-breaks to beat Paire 6-4 6-7 (3-7) 7-6 (7-5), as the Frenchman's dismal string of results in 2021 continued.

Paire has now won just one of 10 matches this calendar year, while Thompson registered a fifth win of the season.

Pablo Carreno Busta won his first home ATP Tour title at the Andalucia Open on Sunday, while Lorenzo Sonego triumphed in Cagliari.

Hunting a fifth Tour title, top-seed Carreno Busta needed three sets to overcome compatriot Jaume Munar 6-1 2-6 6-4 in Marbella.

It is his 200th tour-level win, though it took him two hours and 21 minutes to claim his maiden Spanish title, and his first win since 2019.

Carreno Busta certainly had to work hard for it, with Munar having battled to 4-4 in the decider.

Yet a seventh break point of the ninth game was taken by Carreno Busta, whose powerful backhand return forced his 23-year-old opponent into an error.

Meanwhile, Sonego became the first Italian since Filippo Volandri in October 2006 to win an ATP Tour title on home soil as he overcame Laslo Djere in the Sardegna Open. 

Serbian Djere was on a nine-match winning streak in Italy, but Sonego – who won the doubles title on Saturday – succeeded 2-6 7-6 (7-5) 6-4.

Sonego is the first player since Feliciano Lopez at the 2019 Queen's Club Championships to win both the doubles and singles titles, and the first Italian to do so since Matteo Berrettini at the 2018 Swiss Open Gstaad.

It represents a second tour-level triumph for world number 34 Sonego, who previously won the 2019 Antalya Open.

Top seed Pablo Carreno Busta and fellow Spaniard Jaume Munar will meet in the Andalucia Open final on Sunday. 

Carreno Busta was pushed all the way by Albert Ramos-Vinolas in a pulsating semi-final, ultimately coming through 6-1 3-6 7-6 (7-5). 

"It was so close. I don't know what happened in the second set," Carreno said. "At the beginning of the match, I was very focussed on my game and being aggressive. 

"After that, Albert, of course, started to push [back] more and [I] started to lose my level a little bit. 

"I just kept fighting all the time, and I want to thank everyone [in the crowd] for their support. This is what we missed last year, the crowd. It's very important to play these kinds of very close matches with a crowd like this."

He will take on Munar after the 23-year-old edged past Carlos Alcaraz 7-6 (7-4) 6-4. 

Munar, who reached a final on the ATP Challenger Tour last week, said: "I feel happy and excited. I've been working a lot during the last [few] months. 

"It's a gift for me to be here in a final, and especially in Marbella which is one of my favourite places. I feel excited."

Elsewhere, Lorenzo Sonego is aiming to become the first Italian to win an ATP Tour clay-court title on home soil for 15 years when he takes on Laslo Djere in the final of the Sardegna Open on Sunday. 

Sonego, 25, overcame American Taylor Fritz 6-4 5-7 6-1 to give himself the opportunity to add to his Antalya Open title from 2019. 

Standing in his way is Serbian Djere, who cruised past Nikoloz Basilashvili 6-2 6-0 in just 52 minutes. 

Djere was in control from the outset and from 3-2 in the first set went on to win nine straight games, helping him to his third ATP Tour final.

Top seed Pablo Carreno Busta led a clean sweep for home players to head up an all-Spanish semi-final slate at the Andalucia Open, where teenage sensation Carlos Alcaraz made history.

Carreno Busta demolished seventh seed Soonwoo Kwon 6-4 6-0, while Casper Ruud was stunned in straight sets by wildcard Alcaraz.

The 17-year-old backed up his victory over the veteran Feliciano Lopez in style, becoming the youngest ATP Tour semi-finalist since Alexander Zverev at Hamburg in 2014 with a 6-2 6-4 win.

Albert Ramos-Vinolas will face Carreno Busta after beating Norbert Gombos 6-7 (4-7) 7-5 6-4, while Alcarez is next on the agenda for compatriot Jaume Munar, who was taken the distance by Ilya Ivashka having overcome second seed Fabio Fognini on Thursday.

Taylor Fritz continued his solid form this season with a straight sets victory over Aljaz Bedene to reach the semi-finals of Sardegna Open.

Fritz is playing as the US number one for the first time in Cagliari this week and he made light work of Bedene, prevailing 6-3 6-4 to book a showdown with third seed Lorenzo Sonego, who beat Yannick Hanfmann 3-6 7-6 (8-6) 6-3 despite being 3-5 down in the second.

Seeded second and ranked 30 in the world, Fitz improved his 2021 record to 11-5 and will look to avenge a defeat in his only other meeting with Sonego on clay, when he lost at Roland Garros last year.

Lorenzo Musetti thrilled as he saved four match points to sink top seed Dan Evans on Thursday but bowed out after another epic, losing to Serbia's Laslo Djere 6-4 4-6 6-2 in two hours and 21 minutes.

Djere, who beat sixth seen John Millman en route to the quarter-finals, will face Nikoloz Basilashvili after the battle between seeds four and five ended 7-5 4-6 6-3 in the Georgian's favour.

Top seed Dan Evans was knocked out of the Sardegna Open as Lorenzo Musetti saved four match points to progress to the quarter-finals.

NIneteen-year-old Musetti trailed 6-3 in the third-set tie-break after letting an earlier match point slip through his grasp.

But Evans could not convert any of his first three match points and, after Musetti let another one go begging, the Briton failed to take advantage of his fourth opportunity.

Evans' profligacy eventually proved costly, Musetti converting his third match point with a well-executed forehand drop shot to clinch a 6-1 1-6 7-6 (10-8) triumph.

Seven of Musetti's 12 ATP Tour level wins have now come against players in the top 35 of the rankings.

"The secret for me is not to think about [their ranking], to just play them like other opponents," said Musetti, quoted on the ATP website. "I try to play my game… and try to play as good as I can.

"That is what I did. With them, I always play good. I don't know why. I have no pressure and I feel free. I have no pressure to win and today was the same."

Sixth seed John Millman lost in straight sets to Laslo Djere, but third seed Lorenzo Sonego eased past Gilles Simon 6-4 6-1 to set up a meeting with Yannick Hanfmann, who overcame Marco Cecchinato.

At the Andalucia Open, the seeds tumbled out in Thursday's action.

Second seed Fabio Fognini was thrashed 6-2 6-1 by Jaume Munar, Alejandro Davidovich Fokina lost in straight sets to Ilya Ivashka and sixth seed Feliciano Lopez was undone by a comeback from Carlos Alcaraz.

Seventeen-year-old Alcaraz recovered after losing the first set to beat veteran Lopez 4-6 6-2 6-4. Bucking the trend of the day, third seed Casper Ruud prevailed 6-3 6-2 against Gianluca Mager.

The French Open will take place a week later than initially scheduled this year, a move aimed at increasing the possibility of spectators attending the event in Paris.

Action at Roland Garros was due to begin with qualifying on May 17, reverting back to a more traditional time in the tennis calendar after taking place last year in September and October.

That move was made due to the impact of the coronavirus pandemic, taking place after the US Open while Wimbledon was cancelled.

With France currently in a third nationwide lockdown as part of measures to slow the rise in COVID-19 cases, the ATP and WTA Tours released a joint statement on Thursday confirming the main draw at Roland Garros will now begin on May 30 instead.

"Tennis has required an agile approach to the calendar over the past 12 months in order to manage the challenges of the pandemic, and this continues to be the case," the statement read.

"The decision to delay the start of Roland Garros by one week has been made in the context of recently heightened COVID-19 restrictions in France, with the additional time improving the likelihood of enhanced conditions and ability to welcome fans at the event.

"Both the ATP and WTA are working in consultation with all parties impacted by the postponement to optimise the calendar for players, tournaments and fans, in the lead-up to and following Roland Garros.

"Further updates will be communicated in due course."

Rafael Nadal is the defending men's champion, the Spaniard having secured the clay-court title for a 13th time in 2020. However, there was a new winner in the women's tournament, Iga Swiatek of Poland defeating Sofia Kenin in the final.

A statement released from the Grand Slam Board backed the move to postpone the French Open, while also announcing the grass-court season will be reduced by one week as a consequence.

"All four grand slam tournaments are united in their view on the importance of a meaningful build-up to every grand slam, to provide players of all competitive levels with appropriate opportunities to practice, prepare and compete on the relevant surface," a statement released via Wimbledon's official website read.

"It was for this reason that the grand slams, together with the Tours, were supportive of changes to the calendar to create an enhanced grass-court season of three weeks between Roland Garros and the Championships from 2015 onwards. It is widely agreed that this change has been very successfully received.

"However, given the considerable challenges ahead of the FFT in staging Roland Garros, and to avoid further impact on the rest of the calendar, the grass-court season will be reduced by one week in 2021."

Wimbledon will remain as planned, the main draw beginning on June 28 with qualifying taking place the week beforehand.

Pablo Carreno Busta got his quest to win a maiden ATP Tour title in his homeland under way with a straight-sets defeat of Mario Vilella Martinez in the Andalucia Open.

Top seed Carreno Busta needed an hour and 38 minutes to dispatch his fellow Spaniard 7-6 (7-2) 6-3 in Marbella on Wednesday.

Carreno Busta won 73 per cent of points on his first serve and saved the only two break points he faced to set up a quarter-final against Soonwoo Kwon, who beat Facundo Bagnis 6-1 6-3.

Albert Ramos-Vinolas was another home contender to progress, getting the better of Ricardas Berankis 6-3 4-6 6-3, while Norbert Gombos ousted eighth seed Federico Delbonis 5-7 7-6 (7-4) 7-6 (7-1).

There were no surprises in the Sardegna Open, where all three seeds in action moved into the last eight.

Taylor Fritz, the second seed, saw the back of Andrej Martin 6-2 7-6 (7-4) to set up a meeting with Aljaz Bedene, who beat Egor Gerasimov 6-4 7-6 (7-5).

Fifth seed Jan-Lennard Struff needed only 81 minutes to defeat qualifier Liam Broady 6-4 6-2, while Nikoloz Basilashvili rallied from a set – and five match points – down to see off Jozef Kovalik 4-6 6-4 7-5.

Two teenagers lit up the ATP Tour on Tuesday as Lorenzo Musetti raced through at the Sardegna Open and Carlos Alcaraz advanced in Marbella.

Musetti, 19, produced arguably the standout result of the day as he dismantled Dennis Novak, wrapping up a 6-1 6-0 win in just 53 minutes.

"It was an incredible match," said Musetti, who has been in impressive form of late and moved to 6-2 for the year.

The Italian reached the last four in Acapulco, where ninth-ranked Diego Schwartzmann fell at his racket.

He added on Tuesday: "From the beginning, I felt so comfortable on the court and hitting the ball. I had really good feelings."

Musetti will face top seed Dan Evans next in Cagliari, where Jan-Lennard Struff had to save five match points before finally seeing off Joao Sousa.

None of the seeds followed Monday losers Guido Pella and Tommy Paul out of the tournament, as John Millman also triumphed. Gilles Simon shook off Stefano Travaglia.

At the Andalucia Open, 17-year-old Alcaraz insisted he still saw room for improvement despite setting up an exciting meeting with veteran compatriot Feliciano Lopez.

Sixth seed Lopez, who turns 40 in September and made his professional bow six years before Alcaraz was born, will be wary of the threat of the self-critical prospect, a 7-6 (7-3) 6-3 winner against Nikola Milojevic.

"I have played a great match and above all I have been with a very high intensity from the beginning to the end," wildcard Alcaraz said, quoted on the ATP website.

"If I had to give myself a grade, it would be a nine [out of 10], because you can always play better."

Lopez defeated Taro Daniel, while number five seed Alejandro Davidovich Fokina came from behind to beat Damir Dzumhur 6-7 (1-7) 6-2 6-2.

Federico Delbonis eased through to the last 16 and Soonwoo Kwon held off a strong fight from Holger Vitus Nodskov Rune in Monday's Andalucia Open action.

Eighth seed Delbonis lost serve twice in the first set against Roberto Carballes Baena but recovered well to claim a 7-5 6-1 victory in Marbella.

He will take on Norbert Gombos, who recovered to beat Juan Ignacio Londero 6-7 (3-7) 6-1 6-3, for a place in the quarter-finals of the clay-court event.

Kwon was made to do things the hard way against junior tennis world number one Rune, who took the match all the way.

Despite trailing 3-1 in the third set, seventh seed Kwon held his nerve to force a tie-break and prevailed 6-3 3-6 7-6 (7-4).

Ricardas Berankis is also through thanks to a 6-4 6-7 (5-7) 7-5 victory over Lucas Pouille in just under three hours.

Meanwhile, seeded pair Tommy Paul and Guido Pella fell at the first hurdle in the Sardegna Open to Yannick Hanfmann and Egor Gerasimov respectively.

Eighth seed Paul recovered after squandering a 4-1 lead in a first-set tie-break but fell 7-6 (10-8) 5-7 6-3, while seventh seed Pella lost 6-4 6-0 in straight sets to Gerasimov.

Elsewhere in Cagliari, Aljaz Bedene rallied past teenager Giulio Zeppieri 1-6 7-5 7-6 (7-3) and Laslo Djere eliminated Italian wildcard Federico Gaio 6-4 6-2.

Hubert Hurkacz made history after trumping Jannik Sinner in the Miami Open final for his first ATP 1000 title.

Hurkacz became Poland's first ATP 1000 champion thanks to his 7-6 (7-4) 6-4 win over teenage sensation Sinner in Miami on Sunday.

Second seed Stefanos Tsitsipas, fourth seed Andrey Rublev, sixth seed Denis Shapovalov and 12th seed Milos Raonic were all upstaged by Hurkacz en route to the decider.

Hurkacz – the 26th seed – capped his memorable run with an impressive win against 19-year-old Italian and occasional doubles partner Sinner following one hour, 45 minutes on court.

Set to break into the ATP Tour's top 20 for the first time in his career, moving from 37 to a career-high 16th in the world, Hurkacz became the fourth player to win his first ATP 1000 trophy via the Miami Open since 1990 – following in the footsteps of John Isner (2018), Novak Djokovic (2007) and Andre Agassi (1990).

"I played [some] of the best tennis I've ever played," Hurkacz, who converted seven of 11 break-point chances against ATP 1000 finals debutant Sinner, said.

"I was solid throughout the whole tournament, and I was able to get through each round, [and] was even more pumped for the next round. I think that's something special for me.

"My tennis is getting better. We work hard with my coach, [Craig Boynton], and I'm super happy that it happened here. We still need to improve a couple of things and just try to get better each day."

Hurkacz became the first player this ATP Tour season to win two titles, having already claimed the Delray Beach Open.

The 24-year-old added: "Last year I spent so much time in Florida. I was here like almost half of the year.

"We were working pretty hard, and I think I'm used to the conditions. I think [that's] been part of the success I had here in Florida."

Next month's French Open could be postponed amid the ongoing coronavirus pandemic, according to France's minister of sports.

France entered its third national lockdown on Saturday in a bid to halt another surge of COVID-19 cases, which had threatened to overwhelm hospitals across the country. 

Professional sporting events are largely exempt from the restrictions, but minister of sports Roxana Maracineanu has suggested the French Open could be put back from its scheduled May 23 start date.

"We are in discussions with them [the French Tennis Federation] to see if we should change the date to coincide with a possible resumption of all sports and major events," she told radio station France Info.

"Today, although high-level sport has been preserved, we try to limit the risks of clusters, of spreading the virus within professional sports."

Rafael Nadal won last year's French Open, which was postponed by four months, to pull level with Roger Federer's record of 20 grand slam titles.

Hubert Hurkacz has recorded back-to-back top 10 wins to move a step closer to his maiden ATP Masters 1000 trophy with a hard-fought straight-sets win over Andrey Rublev at the Miami Open on Friday night.

The 26th seeded Pole knocked off in-form fourth seed Rublev 6-3 6-4 to book a spot in Sunday's final where he will play teenage 21st seed Jannik Sinner who defeated Roberto Bautista Agut earlier in the day.

The 24-year-old from Wroclaw had beaten second seed Stefanos Tsitsipas in the quarter-finals and continued that strong form by never allowing Rublev to settle into his game.

"It means a lot, especially after winning a title at the beginning of the year, I had a couple of rough matches," Hurkacz said in his on-court interview, referring to his January win at the Delray Beach Open in Florida.

"I’m so happy that I came over and I was still trying to improve my game and trying to be a better player. This is really huge for me."

The 23-year-old Russian had won 16 matches this calendar year including taking out last month's Rotterdam Open.

Rublev had also not lost a set all tournament and only been broken twice, yet Hurkacz broke serve three times.

The Pole also hit 25 winners and showed determination under pressure, when Rublev had a break point at 5-4 in the second set, before saving it in an epic rally and winning the game to secure the match.

World number eight Rublev said: "Today was not my day. Hurkacz played really well and he deserved to win… Now it's time to go back to work hard to be ready for the clay season."

"It’s [been a] great week for me. I did my first semis [at an ATP Masters 1000]. I'm playing really consistent. Every week I go deep in the tournament."

Sinner, 19, won a three-set match against Bautista Agut to book his spot in the decider earlier on Friday.

The young Italian world number 31 and Hurkacz know each other well.

"We played doubles together last week in Dubai,"Hurkacz said. "Now we’re playing in the final of a Masters 1000 event, so it’s going to be a fun match."

Jannik Sinner followed in the footsteps of three all-time tennis greats as he became the fourth teenager in history to reach a men's singles final at the Miami Open.

The 19-year-old Italian hit three huge backhand winners to break serve in the final game as he pulled off a 5-7 6-4 6-4 victory over Spain's Roberto Bautista Agut in their last-four clash.

It means Sinner matches Andre Agassi, Rafael Nadal and Novak Djokovic - players who went on to be ranked number one in the world - in becoming a finalist at the Masters 1000 tournament while still in his teens.

The hotly tipped world number 31 will contest a final at this level for the first time in his career on Sunday, awaiting the winner of the second semi-final between Andrey Rublev and Hubert Hurkacz.

Sinner said of his feat: "It sounds incredible. I'm very, very happy about today because obviously being the first semi-final it's not easy to play, especially on a Masters event, and playing against a very, very solid player in Roberto.

"We had a tough battle two weeks ago, and coming out as a winner today it means a lot to me."

Sinner also won that previous match, another tight three-setter, in Dubai.

Speaking on Amazon Prime, he explained how he recovered from a slow start to win the Miami tussle.

"In the beginning I think we were both a little bit tight and then we both played a little bit better," Sinner said.

"Today was not easy, it was a little bit windy, and in the end I tried to serve better and try to move him a little bit more, try to mix it up a little bit, and that was the key today.

"He was serving a few second serves in the last game and I just tried to go for it and even if I lost the game I was 5-5, so I was up in the score and it was the right decision."

Agassi, in 1990, and Djokovic, in 2007, were both teenage champions at the event, beating Stefan Edberg and Guillermo Canas respectively in the title matches.

Nadal lost to Roger Federer in the 2005 final, with the Swiss coming from two sets down to win what was then a five-set finale to the tournament. It has since gone back to being a best-of-three match.

Sinner may have benefited from Nadal, Djokovic and Federer electing to skip this year's tournament, but many believe he has the potential to follow them to the very top of the game.

Former women's world number five Daniela Hantuchova hailed Sinner's "braveness and calmness", adding: "When it really mattered, he stepped it up big time and to be able to do that at such a young age, we are looking at something very, very special here."

Greg Rusedski, runner-up at the 1997 US Open, added on Amazon's broadcast: "Rafa was the youngest to be in the Miami finals. Mentally they have a lot in common. Different styles but just bold and brave."