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.
Emma Raducanu promises more after reaching Stuttgart Open quarter-finals
Emma Raducanu says the best is yet to come as she continued her excellent form by making it through to the quarter-final of the Stuttgart Open.
The 2021 US Open champion beat Linda Noskova 6-0 7-5 in Germany to set up a mouth-watering last-eight tie with world number one Iga Swiatek on Friday.
Raducanu is making her way back after a torrid 2023 but looked excellent in winning her two ties in the Billie Jean King Cup at the weekend and then followed that up by swatting home favourite Angelique Kerber aside in Wednesday’s first round.
She stepped it up again to dispose of the world number 31 to set up a repeat of the 2022 quarter-final with Swiatek.
Despite all her troubles since winning the US Open in 2021, Raducanu never doubted the good times would return.
“I am not too surprised because I have been working really hard on the training court and I knew it was just a matter of time,” she said in her on-court interview.
“This isn’t my best I still have a long way to go. I am just really happy the rewards are starting to come on the match court.
“You know how it is when you are training day in, day out you feel like the results aren’t going your way. It is never that far away, that is something I am learning.
“Going through everything I have been through gives you a different appreciation, there is nothing like playing in front of fans and playing good tennis.”
Her progress will face its toughest test when against the Polish world number one, who is a master of the clay court, but the Briton knows she is not under any pressure.
Raducanu, whose world ranking of 303 will shoot up, added: “We played here two years ago in the quarters, I have come a long way in two years, and she has achieved a lot, I have nothing to lose, I can swing and enjoy it.
“Hopefully recover in time. I’m good.”
Emma Raducanu records impressive victory over Angelique Kerber in Stuttgart
Emma Raducanu claimed an emphatic 6-2 6-1 win over former two-time champion Angelique Kerber in the last 32 of the Porsche Grand Prix in Stuttgart.
Fresh from helping Great Britain reach the finals of the Billie Jean Cup at the weekend, Raducanu continued her promising form on clay by breezing past the home favourite.
Both Raducanu and Kerber were playing as wild cards in Stuttgart, with the Briton tumbling down the rankings after time out to undergo three surgeries.
Meanwhile former world number one Kerber only recently returned from 18 months out on maternity leave.
Raducanu got off to a flying start by breaking Kerber in the opening game and despite an immediate response from the German, the 2021 US Open champion took control and claimed the first set in 41 minutes.
Kerber was broken again at the start of the second set and although she managed to haul back level, Raducanu stepped up a gear and shrugged off a brief visit from the trainer to wrap up an emphatic win.
Also in Stuttgart, reigning US Open champion Coco Gauff rallied from 4-2 down in the deciding set to overcome fellow American and world number 134 Sachia Vickery 6-3 4-6 7-5.
And Tunisia’s Ons Jabeur finally snapped a five-game losing streak to beat Ekaterina Alexandrova 2-6 6-3 7-6 (1), telling reporters: “I thought about withdrawing so many times because I couldn’t take another loss.”
In Rouen, Naomi Osaka’s return to clay was cut short by a 6-4 6-2 first round defeat to Martina Trevisan.
Like Kerber, Osaka only recently returned to the tour following maternity leave, and was competing as a wild card.
In the Oeiras Ladies Open in Portugal, Britain’s fifth-seeded Harriet Dart suffered a 6-3 6-1 defeat to home player Matilde Jorge.
Rafael Nadal’s Barcelona Open hopes ended by Alex de Minaur
Rafael Nadal’s latest comeback bid came to an end as he was well beaten 7-5 6-1 by fourth seed Alex de Minaur at the Barcelona Open.
The 37-year-old was playing just his second tournament in 15 months after suffering another hip problem at his comeback event in Brisbane in January.
And having intimated that this will be his final year before retirement, Nadal’s defeat was likely to mark his final appearance at a tournament he has won 12 times.
Having overcome Italian Flavio Cobolli in the opening round, Nadal faced a much sterner test against the in-form De Minaur and was sent scampering around the court in a tight opening set which was edged by the Australian.
De Minaur went on to step up a gear, securing a double break over the Spaniard and racing over the line behind a strong service game on which he did not drop a single point in the second set.
Jack Draper made the most of a rain delay to defeat wild card Rudolf Molleker and reach the quarter-finals of the BMW Open in Munich.
German Molleker, ranked 179th, had been the better player in the first set but a brief stoppage ahead of the second set changed the momentum of the contest.
Draper began to assert his powerful game after the resumption and lost only two more games, pulling away to claim a 4-6 6-1 6-1 victory.
In the last eight the British number two, who is ranked 46th, will take on either third seed Taylor Fritz or Spanish qualifier Alejandro Moro Canas.
Speaking in an on-court interview, Draper said: “I think Rudy played an amazing level in the first set. The conditions were very rainy and very slow. In the second and third, the sun comes out and I start feeling better. I’m really proud of the way I played.”
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