Defending champion Andrey Rublev was able to find another gear to get through his first-round match at the Dubai Tennis Championships on Monday, beating Filip Krajinovic 7-5 6-2.

The number two seed got off to a rocky start, finding himself 5-2 down in the first set before dramatically turning the tide, winning five straight games.

Rublev's first serve percentage improved from 49 to 58 in the second set as he stepped up his game against his Serbian opponent.

"Filip is one of my good friends, and we always have tough battles," Rublev said after his win. "So, today I was going on court thinking that it was going to be a really tough match, and when he started the way he did, I didn't know what to do because he was playing so good.

"Somehow I calmed myself and said 'OK, restart at the bottom and raise my level', and I started to play much, much better. I was able to turn the match around and finish the match in a good way."

He will face Alejandro Davidovich Fokina in the second round after the Spaniard took just 52 minutes to beat Malek Jaziri 6-2 6-0, converting all five of his break points as he strolled to victory.

Seventh seed Alexander Zverev had to come from behind to beat Jiri Lehecka 4-6 6-3 6-4, while Tallon Griekspoor set up a second-round clash with top seed Novak Djokovic after the Dutchman beat Constant Lestienne 6-4 3-6 6-2.

Marc-Andrea Huesler will face top seed Holger Rune in the second round of the Open Sud de France after coming through a battle with teenager Luca Van Assche.

Huesler arrived in Montpellier on a high from victories over German duo Alexander Zverev and Oscar Otte for Switzerland in Davis Cup qualifiers last weekend.

The left-hander saw off 18-year-old Frenchman Van Assche 6-3 3-6 6-3 and will get a chance to improve his perfect record against Rune to 3-0.

Italian Lorenzo Sonego sent eighth seed Benjamin Bonzi packing with a 6-4 6-3 win, while French-born American Maxime Cressy progressed with a 6-3 6-2 defeat of Antoine Bellier.

Arthur Rinderknech and Quentin Halys also advanced on home soil, along with Marton Fucsovics and Filip Krajinovic.

Novak Djokovic was beaten in his first match back in Australia but did at least receive a warm reception from the crowd at the Adelaide International.

Djokovic – who saw a three-year visa ban lifted in November – was playing with Vasek Pospisil in the doubles, and the duo lost 4-6 6-3 10-5 to Tomislav Brkic and Gonzalo Escobar on Monday, but the fans in attendance chanted "Novak" as they welcomed him back following his absence from last year's Australian Open.

The Serbian will face Constant Lestienne in the first round of the men's singles, but second seed Felix Auger-Aliassime is already out after he lost to Alexei Popyrin.

Auger-Aliassime struggled throughout as his Australian opponent, ranked 120th in the world, put in a crowd-pleasing performance to go through 6-4 7-6 (7-5).

Another young star, Holger Rune, is also out after the fifth seed was beaten 2-6 6-4 6-4 by Yoshihito Nishioka.

Quentin Halys set up a potential second-round clash with Djokovic after beating Jordan Thompson in straight sets, while Miomir Kecmanovic, Jack Draper, Roman Safiullin and Thanasi Kokkinakis all progressed.

It was also a bad day for seeds at the Maharashtra Open in Pune, with Alex Molcan beaten 6-2 6-4 by Laslo Djere and Jaume Munar losing 6-4 7-5 to Tallon Griekspoor.

Dutchman Griekspoor will now play Marco Cecchinato after the Italian overcame Nikoloz Basilashvili, and Roberto Carballes Baena set up a last-16 clash against top seed Marin Cilic by defeating fellow Spaniard Bernabe Zapata Miralles.

Filip Krajinovic did make it through a tussle with home favourite Sumit Nagal to set up a meeting with Michael Mmoh, while Benjamin Bonzi will face third seed Emil Ruusuvuori after beating Tseng Chun-hsin.

Carlos Alcaraz was made to come from a set down but finally overcame Nicola Kuhn in the first round of the Hamburg European Open.

The highly rated Spanish teenager eventually downed the German wildcard 3-6 6-1 7-6 (7-3).

Kuhn, ranked 259 in the world, was aggressive early on against Alcaraz, and was rewarded with the first set.

But the 19-year-old – playing as top seed in an ATP Tour event for the first time – rallied to ease through the second set, before being made to work much harder to clinch the win on a tie-break.

Alcaraz will now play Filip Krajinovic in the second round after the Serbian also won in a third-set tie-break against Sebastian Baez 6-1 4-6 7-6 (8-6).

Three seeded players crashed out on Tuesday in straight sets, with third favourite Diego Schwartzman losing against Emil Ruusuvuori 7-5 6-4, sixth seed Nikoloz Basilashvili beaten by Aslan Karatsev 6-4 6-0, and eighth seed Holger Rune going down 7-6 (10-8) 7-5 to Tallon Griekspoor. 

Fourth seed Pablo Carreno Busta eased through against Luca Nardi 6-2 6-1, while there were also wins for Fabio Fognini, who sealed his 400th career victory, as well as Daniel Elahi Galan, Borna Coric and Francisco Cerundolo.

At the Swiss Open in Gstaad, sixth seed Cristian Garin lost 6-3 6-4 to Yannick Hanfmann and seventh favourite Hugo Gaston fell to Dominic Thiem despite winning the first set, losing 1-6 6-1 7-6 (9-7).

Elsewhere, Frenchman Richard Gasquet beat Roberto Carballes Baena 7-5 6-4, while his compatriot Benoit Paire retired hurt when a set and a break down against Elias Ymer.

A tight game between Swiss pair Dominic Stricker and Marc-Andrea Huesler saw the former prevail 6-7 (2-7) 7-6 (7-2) 6-4, and an all-Spanish affair was similarly close as Jaume Munar defeated Bernabe Zapata Miralles 6-3 3-6 7-5.

There were also wins for qualifiers Juan Pablo Varillas and Nicolas Jarry against Lorenzo Sonego and Thiago Monteiro respectively.

Matteo Berrettini ramped up his Wimbledon preparations by securing his seventh ATP Tour title and fourth on grass as he won again at the Queen's Club Championships.

The Italian returned from injury in emphatic fashion at the Stuttgart Open, defeating Andy Murray in the final, before heading to Queen's ahead of the start of the third major of the year.

Berrettini had little trouble negotiating his way through to Sunday's showpiece, dropping just one set throughout the tournament to set up a meeting with Filip Krajinovic.

And despite having to battle in the first set, Berrettini triumphed 7-5 6-4 to retain the title he won last year.

The 26-year-old had an early break cancelled out by Krajinovic but got a crucial second break to take the first set.

A tentative opening followed in the second set, yet Berrettini's patience paid off when he broke in the fifth game and he was able to serve out the victory.

That signified Berrettini's ninth straight win, all on grass, after a three-month injury lay-off.

Berrettini is the first player in the Open Era to win titles in each of his first two appearances at Queen's, and is the eighth repeat champion at the tournament – the other seven players to have achieved that feat are all former world number ones.

"I arrived to Stuttgart, and I wasn't feeling great, I wasn't hitting the ball the way I want it that way I used to do, and I was like 'guys I think it's going be tough' and then it went pretty well," he said after the win," Berrettini said.

"I mean I guess I'm Italian, I'm always complaining!"

Berrettini has also advanced to the final in all four of his past grass-court events, with his only defeat coming against Novak Djokovic at Wimbledon last year.

The world number 10 will now look to go one better this time around at The All England Club.

Daniil Medvedev set up a Halle Open final meeting with Hubert Hurkacz, overcoming home favourite Oscar Otte to reach his second grass-court final in as many weeks.

The world number one was forced to save a set point in a tight opener before rallying in a tie-break and sailing through the second set in a 7-6 (7-3) 6-3 win. 

Despite falling to a shock defeat to Tim van Rijthoven in 's-Hertogenbosch last week, Medvedev is now 14-2 on grass since a first-round exit at Halle last year, and was delighted to make up for 2021's performance on one of his favoured surfaces. 

"I didn't play well in Halle last year, so I'm happy that this year I managed to raise my level," he said after the win.

"As I've always said, I love playing on grass, so I'm happy to show to myself that I'm capable of being in the final of one of the greatest tournaments, especially on grass, and of course I'm looking forward to tomorrow."

Standing between Medvedev and the second grass-court title of his career is Hurkacz, who required two tie-breaks to edge a thrilling contest with Nick Kyrgios, winning 4-6 7-6 (7-2) 7-6 (7-4).

Elsewhere, last year's Wimbledon runner-up Matteo Berrettini remains on course for back-to-back titles at the Queen's Club Championships after a straight-sets win over Botic van de Zandschulp in the final four.

Berrettini overcame a rain stoppage to secure his eighth consecutive victory, securing a 6-4 6-3 win, and delighted after triumphing in challenging conditions.

"It was a really tough match. We stopped for the rain. I had a lot of chances. It was windy again and really tough to play, but I definitely think it was the best match of the week, so I am really happy and looking forward to the final," the Italian said. 

Berrettini will face world number 48 Filip Krajinovic in Sunday's final, after the Serb cruised past 2014 US Open champion Marin Cilic 6-3 6-3.

Daniil Medvedev ended his wait for a first win over Roberto Bautista Agut at the Halle Open as his impressive start to the grass-court season continued.

The world number one, who reached the final at 's-Hertogenbosch last week only to suffer a shock defeat to Tim van Rijthoven, had not beaten Bautista Agut in three previous matches.

But his duck against the Spaniard is over following a 6-2 6-4 win, which set up a semi-final meeting with Oscar Otte after the German saw off Karen Khachanov in three sets.

"I remember all the matches we had… He was playing some [great] tennis and it was tough for me to win," Medvedev said of his previous meetings with Bautista Agut. 

"Today I had my plan, managed to keep it going. Definitely got more edge on the most important points, because he had more break points than me. It was not easy, and I'm happy to win."

Hubert Hurkacz, a Wimbledon semi-finalist last year, is also into the last four after edging Felix Auger-Aliassime in two tie-breaks and will face Nick Kyrgios, who beat Paulo Carreno Busta in straight sets.

Elsewhere, Matteo Berrettini was victorious at the Stuttgart Open and is on course to go back-to-back at the Queen's Club Championships after seeing off Tommy Paul 6-4 6-2 to progress to the semi-finals.

Botic van de Zandschlup is his next opponent, the Dutchman overcoming Alejandro Davidovich Fokina 6-2 6-4.

Meanwhile, Filip Krajinovic had to come from a set down to end Briton Ryan Peniston's run at the quarter-final stage, with his reward a meeting with former US Open champion Marin Cilic, a straight-sets victor over Emil Ruusuvori.

World number one Daniil Medvedev is through to the quarter-finals of the Halle Open after beating Ilya Ivashka in a routine straight-sets win.   Medvedev only played and defeated the Belarusian six days ago at the Rosmalen Grass Court Championships, and triumphed again as he came through in Germany 7-6 (7-4) 6-3.   After saving three set points to stay in the opening set, Medvedev sealed it on a tie-break, before easing through in the second.   "He is a great player," Medvedev said of Ivashka after the win. "He had a lot of bad luck with injuries at the beginning of the season. At the end of last season he was playing really great tennis.   "I've known him since I was very young, we actually played in Futures, Challengers, and on the ATP Tour. He beat me once in the Davis Cup, which is a really important tournament. So he knows how to play tennis, he knows how to play well on grass, so I'm really happy that two times in a row I managed to pass a tough test."   He will now play seventh seed Roberto Bautista Agut in the last eight after the Spaniard beat Tallon Griekspoor 6-7 (6-8) 6-4 6-2.   Eighth seed Karen Khachanov is also through after defeating Serbian Laslo Djere 7-6 (7-4) 6-4, and will face Oscar Otte after the German overcame Nikoloz Basilashvili 4-6 6-0 7-6 (7-3).

At the Queen's Club Championships, second seed Matteo Berrettini came from a set down to finally see off Denis Kudla, winning 3-6 7-6 (7-5) 6-4.

Defending champion Berrettini was troubled by the world number 82, and was just a tie-break away from suffering an upset, but the Italian came through as he belted down 22 aces in the match.

Berrettini faces Tommy Paul in the quarter-finals after the American beat Stanislas Wawrinka in straight sets, 6-4 6-1.

Ryan Peniston carried on from knocking out number one seed Casper Ruud by beating Francisco Cerundolo 6-0 4-6 6-4, setting up a last eight clash with Filip Krajinovic after he came from behind to defeat Sam Querrey 4-6 6-3 6-4.

Aslan Karatsev staved off a match point to earn a meeting with Novak Djokovic in the second round of the Internazionali d'Italia. 

After coming from a set down to force a decider against Lloyd Harris in his opening match in Rome, Karatsev held serve when facing match point in a back-and-forth tie-break. 

The Russian had already missed a chance to break for the match but did not fail at the second attempt, completing a 3-6 6-3 7-6 (9-7) win to book a date with world number one Djokovic.

Djokovic will be eager to get back on track after suffering a defeat to Carlos Alcaraz in the semi-finals of the Madrid Open.

Filip Krajinovic's reward for a 7-6 (9-7) 7-6 (7-4) victory over Frances Tiafoe is a showdown with Andrey Rublev, while Cristian Garin will take on the in-form Alcaraz following a 6-3 6-2 success over wildcard Francesco Passaro. 

Marin Cilic was the other main-draw winner on Sunday, cruising past Matteo Arnaldi 6-1 6-4 in an hour and 20 minutes. 

There were victories for John Isner and Dan Evans as the Madrid Open got up and running on Sunday.

Big-serving American Isner overcame Filip Krajinovic 7-6 (10-8) 6-4 and will face either Cameron Norrie or Kwon Soon-woo in the round of 32.

Isner is joined in the next round by Evans, who eased past Federico Delbonis 6-3 6-4 to set up a last-32 meeting with either Roberto Bautista Agut or Jenson Brooksby.

Fellow Briton Jack Draper also enjoyed a straight-sets victory, edging out Lorenzo Sonego 6-4 6-3 to book a clash with number six seed Andrey Rublev, who received a bye.

Monday's action will see wildcard Andy Murray face Dominic Thiem and 10th seed Jannik Sinner take on Tommy Paul.

Alexander Zverev will face Alexander Bublik in the Open Sud de France final after easing to victory over Mikael Ymer on Saturday.

The top seed is seeking a 20th tour-level title and has yet to drop a set in his three matches in Montpellier after beating Bublik 6-1 6-3.

Ymer eliminated Gael Monfils and Richard Gasquet en route to the semi-finals, but the world number 83 struggled against Zverev in his third straight loss to the German. 

Zverev was triumphant in his last appearance in this tournament five years ago and is the strong favourite heading into Sunday's final with Bublik.

"I am in the final and I am happy about that," Zverev said in his on-court interview. "I played a pretty good match. I think I played one bad game in the whole match. 

"Overall I am happy to be in another final, playing against Alex who I have known since I was 12 years old, so hopefully it will be a fun match."

Bublik also claimed a routine win in his semi-final against Filip Krajinovic, the sixth seed prevailing 6-4 6-2 in a little over an hour.

The 24-year-old is through to his fifth ATP Tour final, having most recently gone all the way at the Singapore Open last February, where he lost to Alexei Popyrin.

At the Tata Open Maharashtra, Mikael's older brother Elias Ymer squandered three match points to lose 5-7 7-6 (7-4) 7-5 to Joao Sousa in Pune.

The Swedish qualifier had defied the odds to make it to the semi-finals and took the opening set against Sousa, before recovering from 4-1 down to level up the second set 4-4.

But Sousa edged the tie-break and survived three match points in the 10th game of the deciding set, which he would go on to win.

Sousa will face Emil Ruusuvuori in Sunday's final after the world number 87 overcame Kamil Majchrzak 6-3 7-6 (7-0) earlier in the day.

It marks the first tour final that Ruusuvuori has reached, while Sousa is in the hunt for a fourth title at this level.

Alex de Minaur was again stunned by Marcos Giron as the third seed crashed out of the Sofia Open in the second round. 

Following his success over De Minaur at the Moselle Open last week, Giron beat the world number 26 once more as he battled to a 7-6 (7-5) 7-6 (7-2) victory in two hours. 

The unseeded American, appearing for the first time in Sofia, rallied from a break down in the second set to reach an ATP Tour quarter-final - where he will meet John Millman - for the fourth time this season. 

Millman, who is seeded eighth, lost the first set against qualifier Illya Marchenko but recovered well to comfortably triumph 5-7 7-6 (7-0) 6-3. 

However, it was far more straightforward for the other favourites, with top seed Jannik Sinner avoiding a second-set blip to defeat Egor Gerasimov 6-2 7-6 (7-3) and Gael Monfils getting a walkover against Ilya Ivashka. 

Number five seed Filip Krajinovic coasted past fellow Serbian Laslo Djere 6-3 6-0 in just over an hour to set up a quarter-final tie with Kamil Majchrzak. 

In Thursday's other match, world number 56 James Duckworth smashed Benoit Paire 6-4 6-4 in just an hour and 15 minutes to collect his 11th win in his past 12 outings. 

Duckworth, who reached his first ATP Tour final in Nur-Sultan last week, will now challenge defending champion Sinner in the next round. 

Top seed Aslan Karatsev exited the Astana Open at the last-16 stage with a straight-sets defeat to Emil Ruusuvuori on Thursday.

World number 84 Ruusuvuori saved a set point in the first-set tie-break on his way to a 7-6 (8-6) 6-4 victory and will now face Ilya Ivashka for a place in the semi-finals.

There was nearly another upset as home hopeful Alexander Bublik, seeded second, had to recover from a set down to overcome Miomir Kecmanovic 2-6 6-3 7-5.

Carlos Taberner awaits Bublik in the next round after the Spaniard beat Egor Gerasimov 5-7 7-6(5) 7-5.

Kwon Soon-woo and James Duckworth saw off Dusan Lajovic and Filip Krajinovic respectively in straight sets to remain a course for glory.

At the Moselle Open in Metz, meanwhile, Gael Monfils took out Philipp Kohlschreiber 7-6(2) 6-4 to reach the quarter-finals on home soil.

Tournament favourite Hubert Hurkacz made light work of 2016 champion Lucas Pouille with a 6-2 6-3 victory to set up a meeting with Andy Murray in the quarter-finals.

Elsewhere on Thursday, German qualifier Peter Gojowczyk proved too strong for Karen Khachanov and will now face Marcos Giron, who upset fourth seed Alex de Minaur.

Casper Ruud survived a scare as he progressed to the Generali Open semi-finals with a 3-6 7-6 (7-5) 6-1 victory over Mikael Ymer.

World number 14 Ruud is targeting a third successive ATP title, having also captured the Swedish Open and Swiss Open earlier this month.

It has been a timely return to form for the Norwegian, who suffered a shock defeat to Australia's Jordan Thompson at Wimbledon at the end of June.

Although he was in danger of seeing his nine-match winning streak come to an end in Kitzbuhel, after losing the opening set against Swedish opponent Ymer.

Ruud, who also triumphed at the Geneva Open in May, was then taken to a tie-break in the second ser by the world number 99, but held his nerve to tee up a decider.

It was one-way traffic from there with the 22-year-old dominating play to set up a last-four clash with Arthur Rinderknech, who hit five aces as he overcame third seed Filip Krajinovic 6-4 6-1.

Meanwhile, Daniel Altmaier's place in the semi-finals was secured with a 6-1 6-7 (5-7) 6-3 win over Gianluca Mager.

The world number 135, who reached the fourth round of last year's French Open, will play Pedro Martinez in the semi-finals after the Spaniard saw off Jozef Kovalik 6-2 6-2.

World number 16 Roberto Bautista Agut crashed out in the second round as the other favourites for the Generali Open battled through.

Bautista Agut lost the first set to Spanish compatriot Pablo Martinez in Kitzbuhel, Austria, and could not complete a comeback despite forcing a decider as he lost 6-4 6-7 (5-7) 7-5.

Top seed Casper Ruud, who won last week in Gstaad to claim his third ATP Tour crown of 2021 and fourth in total, came from 4-2 down in the first set to win 7-5 5-7 6-4 against Mario Vilella Martinez.

Third seed Filip Krajinovic survived a second-set scare to beat Carlos Taberner 6-3 2-6 6-4.

Arthur Rinderknech, who dispatched of fifth seed Federico Delbonis on Tuesday, awaits Krajinovic in the next round.

The other clash on Wednesday saw Sweden's Mikael Ymer cruise past home favourite Alexander Erler 6-2 6-3 to secure a quarter-final berth.

Ymer will now face the thankless task of challenging 22-year-old Ruud for a spot in the semi-finals.