Benoit Paire was gifted a place in the second round at the Hamburg European Open by Ricardas Berankis' foot injury, but fellow countryman Richard Gasquet could not get past Marco Cecchinato in his first-round clash in Sweden.

Lithuania's Berankis forced Paire to a first-set tiebreak but, due to rolling his ankle earlier in the game, then had no option but to retire hurt.

His retirement granted Paire just his third ATP win of 2021.

At the same event, there was also a first ever ATP win for Sebastian Baez, who coasted past Corentin Moutet 6-1 6-2 to claim a straight-sets victory.

In the Nordea Open, held in Bastad, Italian Cecchinato triumphed over former world number seven Gasquet 6-2 5-7 6-3 to reach the second round.

The 2018 Roland Garros semi-finalist, who fought off Gasquet's second-set comeback, will now face either Federico Coria or Francisco Cerundolo in the next round.

In the other first-round ties, Yannick Hanfmann recorded a straight-sets win over Thiago Monteiro, while Elias Ymer, playing in his home country, beat Taro Daniel 6-2 6-7 (6-8) 6-4.

It proved to be a tough day for home players at the Lyon Open as Roger Federer found out who he will face first in the main draw in Geneva.

All four Frenchmen in action on Monday were knocked out in Lyon, including 2018 finalist Gilles Simon.

Aljaz Bedene knocked out the world number 68 in straight sets, two breaks of serve in each enough to secure a 6-2 6-3 triumph after one hour and 13 minutes on court.

Sebastian Korda overcame both Pierre-Hugues Herbert and the rain to progress to the second round, a 7-6 (7-5) 6-4 triumph wrapped up quickly following a delay.

Having been 5-4 ahead in the second set when play was halted, Korda clinched victory on his first match point upon the resumption, in the process snapping a run of four successive defeats on the ATP Tour.

Cameron Norrie will take on top seed Dominic Thiem next after his 7-5 6-3 win against Corentin Moutet, while Ugo Humbert let slip a one-set lead as he was beaten by Yoshihito Nishioka.

Meanwhile, at the Geneva Open, there was a maiden victory for French teenager Arthur Cazaux as he came out on top against compatriot Adrian Mannarino.

The 18-year-old held his nerve in a decider despite this being his first tour-level contest; Reilly Opelka or Pablo Cuevas will be next up in the event.

As for Federer, he will begin his campaign on Tuesday, the 39-year-old having played just two matches so far this year after undergoing two knee operations in 2020.

The Swiss superstar now knows he will be up against Pablo Andujar, who overcame Australia's Jordan Thompson in straight sets.

Tennys Sandgren saw off Salvatore Caruso 6-3 6-4, while Dominik Koepfer came through a tight tussle with Benoit Paire that spanned two hours and 39 minutes.

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.

Lorenzo Musetti built on his good form with a first-round victory over Michael Mmoh at the Miami Open on Thursday.

Emerging star Musetti defeated American qualifier Mmoh 6-4 6-4 to set up a second-round meeting with 23rd seed Benoit Paire.

Former US Open champion Marin Cilic also progressed in a three-set victory over Federico Coria, while Thanasi Kokkinakis, Sebastian Korda, Tennys Sandgren and Jordan Thompson were other winners.

Former top-five player Kevin Anderson was among those to bow out in the first round of the ATP 1000 event.

STAR ON THE RISE

Italian teenager Musetti continued his rapid rise with a hard-fought victory over Mmoh.

The 19-year-old Musetti reached the semi-finals of last week's Mexican Open, where he beat both Diego Schwartzman and Grigor Dimitrov en route to the semi-finals.

This week, Musetti battled past wildcard Mmoh in one hour, 38 minutes.

"Last week was a fantastic run in Acapulco," Musetti said in his on-court interview. " I played a really good match, it was a tough match.

"I think my lethal weapon is the backhand down the line."

CILIC SLICE OF FORTUNE

Former world number three Cilic secured his place in the second round with a 6-3 2-6 6-4 victory against Federico Coria.

However, Cilic – the 2014 US Open winner – had a huge slice of luck to claim a break back in the first.

The Croatian got lucky down a break at 2-1 but up 30-40 in the first when he mishit his overhead attempt, striking his frame and bobbling over for a drop shot winner to level.

"It was important for me to keep my head down, keep the focus and just try to get the best level I could today," Cilic said.

FOND MEMORIES FOR THANASI

Australian qualifier Kokkinakis' fond memories in Miami returned with a 6-3 6-3 win over Shintaro Mochizuki as he continues his positive return from a shoulder injury.

Kokkinakis beat then-world number one Roger Federer in Miami in 2018.

Korda won his Miami Open debut match, triumphing 6-3 6-0 over Radu Albot to set up a meeting with 10th seed Fabio Fognini.

Jordan Thompson will face Milos Raonic after accounting for Federico Delbonis 7-6 (8-6) 6-4 in two hours, 12 minutes.

Sandgren – a two-time Australian Open quarter-finalist – got past Pedro Martinez 6-4 2-0, with the Spaniard retiring.

Wimbledon and US Open runner-up Anderson was a surprise casualty, going down 7-6 (8-6) 7-5 to lucky loser Damir Dzumhur.

"I know that my game can be much better than what I'm showing right now and my position in the ATP Rankings can be much better," Dzumhur said.