Student Tien & Joao Fonseca Spring Big Grand Slam Upsets of 2025 | ATP Tour
Best of 2025
#Next eninata stars Tien & Fonseca Spring Big Grand Slam Upsets of 2025
Gigante, Corignon, Randirnech also make the top 5 list
November 30, 2025
Daniel Pockett / Getty Images
Student Tien defeated Daniil Medveveveve in five sets at the Australian open.
By Jerome Coombe
To mark the end of another exciting season, atptour.com is hosting our annual “best of” series, which will showcase the most interesting rivals, matchups, comebacks, upsets and more. Today we highlight five surprising standouts returning from this season.
Taking down a top player is one thing, but doing it on their home deck, in front of a packed crowd – or even in your first Grand Slam match – is another.
From the story of the rising youth removing the top seeds in the qualifiers defying the odds in the best stages of the sport, the 2025 majors have brought a few dramas that are literary figures. As part of our season-in-view series, ATPTORN.com is counting down the best sliding grand slams of the year.
5) Roland Garros R2: gigante d. Tsitsipas 6-4, 5-7, 6-2, 6-4
Stefanos Tsitsipas turned Roland Garros into one of his most exciting reasons to hunt, he even built doors on the ground.
Few expected the guidance of Italy, at No. 167 in the PIF atp rankings, to harass one of the Clay-Country Elite. But Gigante, playing with the verve and fire of a man who had nothing to lose, reveals the rest of the former to reduce the 2021 Finalist in four sets. It was a loss that cut deep into the tsitsipas.
For the first time since 2018, the former world No. 2 no Nitto ATP Finals Gigante’s run to the third round was a defining moment, and the Italian has since climbed to the high ground of career No. 125 as he continues his bid for the top 100 Berth.
<img alt="Matteo Gigante “Style =” Width: 100%; “SRC =” https:///ww.atpts/18/18/18/18/15/100Matteo Gigante achieves his first victory over Stefanos Tsitsipas at Roland Garros. Photo: Highlights of Adam / Getty.
4) Us open R2: Collignon D. Ruud 6-4, 3-6, 3-6, 6-4, 7-5
Because Raphael Collignon, New York became a city where proof is promised.
A broken thumb derailed his bid to get straight into Roland Garros, and until the opener, he had never won a major match. But, after dropping Daniel Elah Galan open, Collignon then released the performance of his life to win for Casper established 2022 who fell after three hours and 28 minutes.
“I think it’s the best day of my life,” Collignon said. “It was not easy because Casper is a good champion. I was very scared at the beginning, but I found my rhythm.”
It wasn’t all clear for Collignon, however, as he made three double faults to serve the match at 6-5 in the fifth hour before eventually converting his third game point. It was a win that moved him back into the top 100 and set him up to finish the year, where he won.
<img alt="Raphael Collignon “Style =” Width: 100%; “SRC =” https # //ww.atpts.com/-2/18/18/18/18/18/18/1ppg “>Raphael Collignon reaches the third round for the first time. Photo: Matthew Stockman / Gentty Images.
3) Wimbledon R1: Rindernech d. Zvereev-6 (3), 6-7 (8), 6-3, 6-7 (5), 6-4
After four hours and 44 minutes in the Center Court, Arthur Rindennech brought a moment that could change his time off. The Frenchman’s opener against third seed Alexander Zvereev at Wimbledon had all the makings of a surprise, but he refused to play the part of the underdog.
Randennech hit 79 winners with unrelenting fury, taking it to Zevev from the first ball to the last to protect his maidens over the top 5 players. The upset was Springboard’s impressive second half of the season, which included a final run at GStaad and a fourth-round showing at the US open. Later he came to the ATP 1000 girl’s ATP in Shanghai where, rightly, he won zveree again and improved to 2-0 in their ATP series at the head of the ATP.
“It was a very important moment, maybe the best tennis moment of my career,” Rindernech said in October, talking about his Wimbledon win against Zvereev. “After that, several things succeeded step by step. I feel like I’m at the right stage and now I can do what I want to do, the way I want.”
<img alt="Arthur Rindernech “Style =” Width: 100%; “SRC =” https:Arthur Rindennech is defeated by Alexander Zvereev in five sets at Wimbledon. Photo: Corinne Dubreuil.
2) AUSTRALIAN R1: Fonseca D. Rublev 7-6 (1), 6-3, 7-6 (5)
Joao Fonseca arrived at the Australian Open as one of the most exciting prospects, but few expected him to turn out – beating one of the best footballers in his Draw Mach debut.
However, Fonseca used his pure aggression and the difficulty of surgery in advance of the seed Rerey Rublev in straight sets – a win that was a disaster for Margaret’s court and set the social media well. The 18-year-old Brazilian, who had won the Next Gen ATP Cloud presented by PIF four weeks before, was confirming months of hype following his rapid rise throughout the 2024 season.
“I was trying not to put pressure on myself, I played with 10 guys in the Top 10 on a big field,” said Fonseca, who was supported by many Brazilian fans in Melbourne. “[I was] trying to call the crowd to help me. I enjoyed playing my game. That’s one thing about me, that I play better in key points, I go to the gun. That was the difference today. “
<img alt="Joao fonseca “Style =” Width: 100%; “SRC =” https # //ww.atptour.com/-2/18/18/25/16/18/18/Upsets.Jpg “>Joao Fonseca beats Andrey Rublev in straight sets at the Australian open. Photo: William West / Gentma Images
Although Fonseca fell in his second meeting to Lorenzo Sonego, the young talent even showed himself beyond the season. He captured his ATP Tour title in Buenos Aires in February and then won the ATP 500 crown in Basel, becoming the first Brazilian to win a title above the ATP 250 since 2001.
1) AUSTRALIAN R2: Ten D. Medvedev 6-3, 7-6 (4), 6-7 (8), 1-6, 7-6 (10-7)
Margaret Countren Arena played host to two of the biggest shocks of the season, and the young student Ten brought the second one with his Marathon, winning late at night at the Australian Open Daniil Medvedev.
Competing as the World No. 121, Tien looked set for a heartbreak rather than a breakthrough after failing to convert a break point at the bottom of the third set. The dispute rose to a high level at night when Medvedev rose to serve the match at 6-5 in one, but Teen refused to return, and even his shadows back and held his own in his service at 2:25 am local time at 2:25 am local time at 2:25 am local time at 2:25 am local time at 2:25 am local time at 2:25 am local time at 2:25 am 25 am local time 2:25 am local time 2:25 am local time 2:25 am local time 2:25 am local time 2:25 am local time 2:25 am local time 2:25 am local time 2:25 am local time 2:25 am local time 2:25 am local time at 2:25 am local time at 2:25 am local time at 2:25 am local time at 2:25 am local time.
“I really hope that I won’t break the fifth set, but I’m just happy to get the win,” said Ten. “I know I made it more difficult than when it was possible … losing the third time was difficult after playing that long and having a match point.”
<img alt="Student Ten “style =” width: 100%; “SRC =” https://wwptscour.com/-2/tien/20ien-20/Student Tien defeated Daniil Medveveveve in five sets at the Australian open. Photo: Paul Crock / Getty Images.
From there, Ten’s trajectory only grew. Along with Fonseca, who defeated the American in the next 2024 finals presented by the PIF title match, the Ten fully available at home came from the tour level. He has collected five top-10 wins beyond 2025, according to Infosys ATP win / loss payment for the ATP Tour title in Metz in November.
.jpg "Rohan Bopanna retires: ATP Tour")
