Stefanos Tsitsipas is taking inspiration from the grandfather he has never met after battling through to round two of the men's singles at Tokyo 2020.
Alexander Zverev had an altogether more comfortable progression at Ariake Tennis Park, while home favourite Kei Nishikori earned an impressive upset win.
Felix Auger-Aliassime was unable to make the most of two-time defending champion Andy Murray's withdrawal, but it was a good day for Hubert Hurkacz.
Here's the pick of the action from day two of the men's singles.
TSITSIPAS OUT TO EMULATE GRANDFATHER
Greek ace Tsitsipas, a French Open finalist this year, had to dig deep for a three-set win over Philipp Kohlschreiber.
Should he manage to win gold in the Japanese capital he would be matching the feat of his grandfather, who won the football competition representing the Soviet Union in 1956.
"I've never had the opportunity to meet him. But my mom told me stories of his career and how he got it," he said. "He kind of inspires me in a way. I know what kind of athlete he was, with all the achievements and all the trophies. I'm proud of him.
"It's something good, a legacy that is being carried on in the family. I'm happy to be the next in the family to be competing at the Olympics."
ZVEREV LOVING OLYMPICS EXPERIENCE
Fourth seed Zverev coasted past Lu Yen-hsun 6-1 6-3 and spoke of how much he is enjoying being around other German athletes.
"Normally you don't have those guys around that much, you have your friends, of course you have people that are around you, but you don't sleep in the same room as them," he said.
"Yes it is very different but in a way very enjoyable. The Olympics are once every four years, and it’s five years now, so I think everybody is enjoying it and everyone is having the best time that they can."
Nishikori is playing at a fourth Olympics and upset fifth seed Andrey Rublev 6-3 6-4. For the 31-year-old the motivation is simple.
"It's [playing in Japan] something I always dreamed of when I was little," he said.
"Especially now, with the Covid situation, if I can win as many as I can, I think it will bring better news, that's something I'm trying to do this week."
AUGER-ALIASSIME FAILS TO MAKE MOST OF MURRAY ABSENCE
Auger-Aliassime was scheduled to face Murray before the Team GB star pulled out with a quad issue and will instead focus on doubles.
The Canadian was felled by Murray's replacement Max Purcell, though, the Australian winning 6-4 7-6 (7-2).
Fellow seed Gael Monfils also crashed out but Hurkacz was a 6-2 6-4 victor over Luke Saville, while Diego Schwartzman also made it through.
Andy Murray revealed he may play alongside brother Jamie in the men's doubles at Wimbledon, with the pair to make a decision "in the next few days".
Murray and Dan Evans fell at the first hurdle of the men's doubles at the French Open on Friday, as the British duo were defeated 7-6 (8-6) and 7-6 (7-3) by Thiago Seyboth Wild and Sebastian Baez.
It was expected to be the three-time grand slam singles champion's final appearance at Roland-Garros, after he revealed in February that he does not "plan on playing much past this summer".
Murray, who was beaten by Stan Wawrinka in the opening round of the men's singles, now turns his attention to the grass-court season, which "may" include a familiar partnership at Wimbledon with brother Jamie - a two-time mixed doubles champion at SW19.
The brothers have also played together at two Olympics - in 2008 and 2016 - while their prolific partnership helped inspire Great Britain to Davis Cup glory in 2015.
"My brother doesn't have a partner for Wimbledon currently," said the 37-year-old, who last played in the men's doubles at SW19 five years ago alongside Pierre-Hugues Herbert.
"We have spoken a little bit about it. So I may do that, but not 100 per cent sure yet. [We will decide] ahead of time. Obviously, Jamie could also get a good partner, as well. We'll see what happens, but we'll probably decide in the next few days."
Murray also reflected on his and Evans' first-round exit at Roland-Garros, where he felt his progress was hampered by an ongoing back problem.
"It's been frustrating for everyone," he added. "I felt like we had a good chance to do well, and we agreed if we were going to play, we would play to try and win the tournament.
"I have been struggling a little bit with my back the last couple of weeks, so I probably needed a few lighter days anyway."
Alcaraz turns on the style to beat Korda at Roland Garros
Carlos Alcaraz dug deep to overcome a spirited performance from Sebastian Korda in the third round of the French Open, claiming a 6-4 7-6 (7-5) 6-3 win.
Korda failed to build on an early break as Alcaraz took the opener on Court Philippe-Chatrier, but he appeared to have the Spaniard on the ropes when he forced a second-set tie-break.
However, the two-time grand slam champion clinched the tie-break with a huge forehand winner and seemed to grow in stature from there, moving well and displaying too much power for his American opponent.
Alcaraz put Korda under pressure from the off in the third set and did not give up a single break point on his own serve, converting the first of two match points with a neat serve and volley.
He will face either Ben Shelton or Felix Auger-Aliassime next, with Stefanos Tsitsipas potentially lurking in the quarter-finals.
Data Debrief: Alcaraz just too good
As was the case against Jesper de Jong in round two, Alcaraz looked to be under serious pressure on Friday, only to step things up and pull away from his opponent.
He has now won 14 of his 17 singles matches at the French Open, with his win ratio of 82.4 per cent the third highest among active male players, after Rafael Nadal (96.6 per cent) and Novak Djokovic (85.3 per cent).
Swiatek celebrates birthday with routine win over Bouzkova
Iga Swiatek marked her 23rd birthday with a straight-sets victory over Marie Bouzkova at the French Open on Friday, maintaining her charge for a third successive Roland-Garros title.
Swiatek was pushed all the way by Naomi Osaka in her second-round match on Wednesday, but she enjoyed a far more serene outing on Court Philippe-Chatrier in the third round.
The world number one raced to a 6-4 6-2 win as Bouzkova struggled to match her heavy-hitting, and she could even afford to surrender one of her two breaks at the tail end of the opener.
Swiatek broke immediately at the start of the second set, setting the tone for a powerful finish to the match, her victory fittingly sealed with a thumping forehand up the line.
She will face Anastasia Potapova next up after the Russian overcame Wang Xinyu in three sets on Friday.
Data Debrief: Perfect celebration for Swiatek
Since the WTA rankings were first published in 1975, only two world number ones have won a match at Roland Garros on their birthday, Justine Henin in 2007 and Swiatek on Friday.
She is also the only player this century to reach the fourth round of the women's draw on each of her first six French Open appearances.
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