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.

Cristian Garin prevailed in his hometown, crowned Chile Open champion with a three-set victory over Facundo Bagnis.

Garin, who had not won a match in 2021 before arriving in Santiago, claimed his first ATP Tour trophy on home soil thanks to Sunday's 6-4 6-7 (3-7) 7-5 triumph.

The top seed and 24-year-old only dropped one set throughout the ATP 250 tournament as he became the first Chilean player to win a home event since Fernando Gonzalez in 2009.

Bagnis was contesting his first final aged 31 and he was unable to see it through against Garin, who celebrated his fifth ATP title – all of them on clay.

Daniil Medvedev claimed the 10th ATP Tour title of his career with a 6-4 6-7 (4-7) 6-4 win over Pierre-Hugues Herbert at the Open 13 Provence in Marseille.

Medvedev will move up to number two in the world in Monday's latest ranking, making him the first player outside of the big four of Roger Federer, Rafael Nadal, Novak Djokovic and Andy Murray to occupy one of the top two positions since Leyton Hewitt in 2005.

The Russian celebrated this achievement with a dogged display to down Herbert in two hours and 11 minutes, saving four of the five break points he faced.

A finalist at the Australian Open, Medvedev is now 14-2 in 2021, with the Open 13 title his sixth on indoor hard courts.

Herbert's strategy of frequently visiting the net was initially picked apart by Medvedev, who only needed one set point in the opener as he threaded a backhand winner expertly down the line.

But the Frenchman applied the pressure in set two, passing up three break points early on before impressing from the baseline to reel off five straight points and claim the breaker from 2-4 behind.

The decider was a tense affair but Herbert's errors at the net came back to undermine his efforts decisively when he served to stay in the match at 5-4.

The 29-year-old has now lost all four of his ATP Finals, while Medvedev again proved himself to be a high-quality operator on such occasions.

Top seed and local hope Cristian Garin progressed to Sunday's Chile Open final after defeating Daniel Elahi Galan in straight sets in their semi-final.

The Chilean world number 22 triumphed over Colombian Galan 6-4 6-3 and will play 118th-ranked Facundo Bagnis in Sunday's decider in Santiago.

Garin sent down eight aces and was dominant on his first serve against Galan.

Santiago native Garin, 24, has never won an ATP Tour title on home soil, while no Chilean has won the event since Fernando Gonzalez in 2009.

"I'm so, so happy to be in the final," Garin said in his post-game on-court interview. "The first day that I arrived I wasn't playing well and it was my second tournament in months, so for me to be in the final is so special, and even more here in Chile."

Argentinian Bagnis defeated higher-ranked countryman Federico Delbonis 7-5 6-3 to secure his place in a maiden Tour final.

Cristian Garin continued his quest for Chile Open glory as another upset in the other half of the draw paired two Argentinians in the semi-finals.

Top seed Garin is aiming to win an ATP Tour event on home soil for the first time in Santiago.

The 24-year-old was made to work by Peruvian qualifier Juan Pablo Varillas in the last eight on Friday, but he prevailed 6-4 6-4.

Garin was broken first in either set yet responded instantly on each occasion.

"I would love to be able to do something important in this tournament," the Chilean said. "It is special and I hope I can continue to win.

"I am playing better, in a semi-final and I am excited to do better, but I prefer to go step by step, game by game."

Daniel Elahi Galan is up next, while the highest remaining seed besides Garin is Argentina's Federico Delbonis, the number eight.

That is because Facundo Bagnis set up a meeting with his compatriot by defeating fourth seed Laslo Djere.

Bagnis, who had already claimed the scalp of fifth seed Frances Tiafoe, dropped the first set but recovered to advance 4-6 6-3 6-3 at the ATP 250 tournament.

Top seed Cristian Garin will fly the flag for Chile in the quarter-finals of the Chile Open after beating compatriot Alejandro Tabilo in the second round.

The only two remaining home hopes in Santiago went head-to-head on Thursday and it was world number 22 Garin who came out on top 6-2 6-2.

Garin, a four-time ATP Tour winner, was forced to retire from the tournament in the last eight last year but will look to reach the semi-finals for the first time when he takes on Peruvian qualifier Juan Pablo Varillas.

The 24-year-old Garin is one of only three seeds remaining in the competition after Varillas' upset win over Federico Coria in straight sets and Daniel Elahi Galan's defeat of Pablo Andujar.

Garin cannot now play another seeded player until the final.

Roger Federer's return to the ATP Tour lasted just two matches at the Qatar Open as he was beaten in the last eight by the brilliant Nikoloz Basilashvili.

Dan Evans is putting friendship aside after earning a blockbuster showdown against returning superstar Roger Federer at the Qatar Open.

Federer has not played competitively since his semi-final exit at the 2020 Australian Open – the 20-time grand slam champion having undergone knee surgery last year.

But the 39-year-old Swiss great will make his long-awaited comeback against Evans in Doha on Wednesday.

Evans – who has been practicing with Federer – outlasted Frenchman Jeremy Chardy 6-4 1-6 6-2 in the round of 32 at the ATP 250 tournament.

"We obviously practised for [the] past two weeks [in Dubai], and I thought he was playing pretty well," Evans said. "We played plenty of sets. It was competitive. But it's all very different when you get on the match court.

"It will be a lot different tomorrow. It's going to be at night, as well, so a little slower. So we'll see how the match goes."

Second seed Federer – a record three-time Qatar Open champion – watched from the stands on Tuesday and Evans added: "He obviously has seen a lot of my game the past few weeks, so I guess I would say it was more out of boredom.

"He's probably [was] waiting for his practice [more] than scouting out what's happening on the court. Let's put it down to that."

Elsewhere, sixth seed David Goffin topped Filip Krajinovic 6-4 6-4 en route to the last 16 but three-time slam champion Stan Wawrinka was stunned 7-6 (7-3) 6-7 (6-8) 7-5 by qualifier Lloyd Harris.

Marton Fucsovics, Vasek Pospisil and Malek Jaziri also advanced through to the next round.

At the Open 13 Province, three-time champion and French veteran Jo-Wilfried Tsonga celebrated his first ATP Tour victory since 2019.

Tsonga – hampered by injuries, including left knee surgery –rallied from the brink to see off Feliciano Lopez 3-6 6-4 7-5 in Marseille on Tuesday.

"This is probably one of the best victories of my career, because it was tough for me to play tennis. I had so much pain for so many months," Tsonga said in an on-court interview. "Today, I won one match. That was one of my goals for these few weeks… I’m happy like a kid."

Next up is fourth-seeded countryman Ugo Humbert, who upstaged sixth seed Kei Nishikori 6-1 6-4.

Meanwhile, Federico Coria and Federico Delbonis were among the victors at the Chile Open.

Roberto Bautista Agut rallied from a set down to defeat Reilly Opelka 4-6 6-3 6-4 in the first round of the Qatar Open.

Bautista Agut, who is the fifth seed in a draw featuring Dominic Thiem, Roger Federer and Andrey Rublev, was the highest ranked player in action in the round of 32 and fell behind to world number 39 Opelka.

Yet, the Spaniard pulled out his familiar battling qualities to prevailed over the big-serving American, who held sway 22-6 in the aces count.

Nevertheless, Bautista Agut was still able to fashion 11 break points over the course of the contest, converting one apiece decisively in sets two and three.

Alexander Bublik took the notion of big serves not being a decisive factor to an extreme as he popped in an underarm to fine effect on match point – qualifier Ramkumar Ramanathan scampering to thump his return out and conclude a 6-4 6-2 loss against Bautista Agut's next opponent.

The match between world number 42 Nikoloz Basilashvili and 41John Millman was as close as the rankings suggested, with the Georgian coming back to win 2-6 6-4 6-2.

Richard Gasquet and Taylor Fritz were straight-sets winners, with Rublev up next for Gasquet.

At this week's other ATP 250 event, the Open 13 Provence in Marseille, eighth seed Yoshihito Nishioka bowed out when he retired 2-6 2-4 down to Emil Ruusuvuori.

Wildcard Hugo Gaston beat Dennis Novak 3-6 6-4 6-1 to claim a notable scalp.

Top seed Daniil Medvedev, Stefanos Tsitsipas, Karen Khachanov and Ugo Humbert will enter the fray in the last 16.

Former world number one Roger Federer said he has no real expectations for his comeback event at the Qatar Open.

Federer has not played competitively since his semi-final exit at the 2020 Australian Open – the 20-time grand slam champion having undergone knee surgery last year.

The 39-year-old Swiss superstar opted not to travel to Melbourne for this year's Australian Open, but he is set to make his comeback in Doha.

Federer, who holds the record for most Qatar Open titles with three – will start his campaign against either Jeremy Chardy or Daniel Evans at the ATP 250 tournament.

"It's been a long year in some ways, especially rehabbing, being on crutches once and then for a second time, and finally I'm back on a tennis court again, working out, playing sets, playing points," Federer said.

"It's a true pleasure, it's a privilege actually after all this time. I didn't expect it to go as long as it did, we are where we are, I'm so excited to be back on a match court, you know, in a few days here.

"I'm really curious to find out how it's going to go, obviously there's an amazing amount of questions marks surrounding my comeback for me personally.

"I don't know what to expect, I know that expectations from myself are extremely low, and I'm just very happy that I'm playing a tournament again, regardless of the outcome of this event."

On whether he had doubts over returning, Federer added: "You always do have doubts, you know, when you have surgery, there are always days when you feel better and worse. But I think overall I am a very positive person, I have a great team around myself, my family, I am also very distracted, and you know, the idea was to be fully fit again, one day. For life or for tennis.

"So equally important to me, actually life is a little bit more important to me, I wanna go skiing and play basketball, I wanna go playing ice hockey, play tennis in the future, with my children or exhibition matches, you name it, so it's definitely worth it to go through all that pain you know. But the goal was, this is not I'm going to go out, I'm not happy with my knee, we're going to fix it, and then I'm going to come back.

"For me there was no other story to it, and rehab wasn't as hard as maybe people make it seem, even though people around me are very impressed how I go about it, but for me it's only but normal to be really, really professional about it."

Diego Schwartzman claimed his first ATP Tour title on home soil as he defeated qualifier Francisco Cerundolo in the final of the Argentina Open on Sunday.

After losing in his two previous finals in Argentina, Schwartzman finally came good in his home city of Buenos Aires with a 6-1 6-2 victory. 

The world number nine was in complete control from the off, breaking six times and conceding on his serve just once as he took just 81 minutes to wrap up a fourth Tour title.

Cerundolo's run to the final had at least ensured that whoever came out on top in the showdown would result in the first Argentine champion of the competition since 2008, when David Nalbandian triumphed in a clash with compatriot Jose Acasuso.

"I'm very, very happy, it's been an amazing week for me," Schwartzman said in the trophy presentation.

"It's the first time that [I have won at] home. Two years ago, I reached the final here and lost. I was very unhappy, but two years later I have my revenge against Francisco who is a great player."

David Goffin beat Roberto Bautista Agut in the Open Sud de France final to win his first title on the ATP Tour since 2017.

The Belgian came from a set down to prevail 5-7 6-4 6-2, securing a fourth consecutive win over Bautista Agut.

It made him just the third non-Frenchman to lift the trophy in Montpellier, following in the footsteps of Tomas Berdych and Alexander Zverev.

The world number five sent down 13 aces and converted four of his seven break points en route to his fifth tournament win.

Alexei Popyrin claimed his maiden ATP Tour title with victory over Alexander Bublik in the final of the Singapore Tennis Open.

Popyrin, who stunned Marin Cilic in the last four, triumphed 4-6 6-0 6-2.

The Australian lost only six points on his serve, wrapping up the win in 84 minutes.

"It feels unbelievable," said Popyrin. "A lot of sacrifice, a lot of dedication and a lot of hard work went into this from myself, my team and my whole entire family.

"I have done it for everybody who was involved. I am just so proud that I could actually get it done."

David Goffin moved a step closer to ending his ATP Tour title drought by seeing off the challenge of Egor Gerasimov at the Open Sud de France. 

Having previously lost in two semi-final appearances at the tournament in Montpellier, Goffin made it third time lucky as he came out on top in a deciding set against his opponent from Belarus. 

The second seed claimed the crucial break in the seventh game, then quickly consolidated his lead with an impressive hold. Gerasimov forced him to serve out for the win and Goffin duly delivered under pressure, clinching on his second match point. 

The world number 15 – who won two of his four career titles in 2017, but none since - will next face Roberto Bautista Agut, who defeated Peter Gojowczyk 7-5 6-1 after just one hour and 16 minutes on court.

At the Singapore Tennis Open, Alexei Popyrin caused an upset as he defeated Marin Cilic via a pair of tie-breaks in a hard-fought semi-final. 

Popyrin prevailed 7-6 (7-5) 7-6 (7-2) to knock out Cilic, who had survived two match points before eventually beating Kwon Soon-woo in the previous round. 

Alexander Bublik is also through to the final, guaranteeing a first-time winner on the ATP Tour at the tournament. 

Bublik made the final of the Antalya Open earlier this year but had to retire due to an ankle injury. He will hope for better fortunes on Sunday, securing another opportunity for a maiden title after battling back from a set down to see off Radu Albot. 

Marin Cilic survived match point en route to defeating Kwon Soon-woo and booking his place in the Singapore Tennis Open semi-finals on Friday.

The former world number three is aiming to become the sixth active player to reach 20 titles on the ATP Tour this week but was staring down the barrel when trailing 5-4 in the deciding set.

But Cilic survived to record a 6-2 2-6 7-5 win against his Korean opponent and earn a last-four date with Alexei Popyrin, following the Australian's straight-sets win over compatriot Matthew Ebden.

"I think that the third set was solid from the both of us, it was a great match and it went to the end," Cilic said. "At 5-5 [in the third set], I kept my focus and felt that I was going to get my chance. 

"There were a few break opportunities that I couldn't convert, but on the third one, I hit a great return."

Radu Albot is into a first ATP Tour semi-final in 19 months after knocking out top seed Adrian Mannarino 6-3 6-4. His reward is a semi-final with Alexander Bublik, who overcame fifth seed Yoshihito Nishioka in straight sets.

At the Open Sud de France, top seed Roberto Bautista Agut made short work of Ugo Humbert in a 6-3 6-3 win. He next faces Peter Gojowczyk after the German routed Dennis Novak 6-4 6-1.

Second seed David Goffin cruised past Lorenzo Sonego 6-4 6-4 and will play Egor Gerasimov in the last four after his three-sets win over Alejandro Davidovich Fokina.

Marin Cilic made a strong start to his quest to win the Singapore Open and join the ATP Tour's rather exclusive '20 club'.

The former world number three beat Taro Daniel 7-5 6-4 on Wednesday, winning 82 per cent of his first-serve points in an encouraging performance as he attempts to win a ninth indoor Tour title.

Should Cilic lift the trophy, he would join Roger Federer (103), Rafael Nadal (86), Novak Djokovic (82), Andy Murray (46) and Juan Martin del Potro (22) as the only active male players to win at least 20 Tour-level titles.

"It is the beginning of the season and my third match of the year, so I am still feeling a little bit rusty," said Cilic. "Overall, it was a solid match. [It is] something I definitely needed for the start of the tournament."

The Croatian will face Kwon Soon-woo in the quarter-finals, while Yoshihito Nishioka and Alexander Bublik were among the others to progress.

Jannik Sinner was a surprise casualty at the Open Sud de France, the world number 34 losing in three sets to Aljaz Bedene in a match that lasted nearly two hours and 40 minutes.

Sixth seed Ugo Humbert battled past Dutch qualifier Tallon Griekspoor in a match with three tie-breaks, while second seed David Goffin went the distance to overcome wildcard Benjamin Bonzi 4-6 6-4 7-5.