Italy’s Jannik Sinner reacts during his men’s singles match against Argentina’s Juan Manuel Cerundolo on day 5 of the French Open tennis tournament on Court Philippe-Chatrier at the Roland-Garros Complex in Paris on May 28, 2026.
Jannik Sinner’s 30-match winning run came to an abrupt halt at the French Open on Thursday as the world number one succumbed to sweltering conditions in a five-set, second-round loss to Juan Manuel Cerundolo.
The world number one was cruising when leading by two sets and 5-1 in the third set before suddenly struggling with his movement as he lost 18 points in a row.
Sinner took a medical time-out, complained of feeling “dizzy” and left a sweltering Court Philippe Chatrier for treatment, but after returning still slipped to a 3-6, 2-6, 7-5, 6-1, 6-1 loss to world number 56 Cerundolo.
Italy’s Jannik Sinner tries to cool down during a break of play in his men’s singles match against Argentina’s Juan Manuel Cerundolo on day 5 of the French Open tennis tournament on Court Philippe-Chatrier at the Roland-Garros Complex in Paris on May 28, 2026.
“I was little bit lucky, I feel sorry for him,” said Cerundolo.
“I don’t know what happened, he was cramping, maybe the pressure. I feel sorry for him and hope he recovers.”
Sinner suffered his earliest exit from a Grand Slam since the 2023 French Open, as Cerundolo completed one of tennis’ biggest shocks in recent years and set up a last-32 tie against either Spanish youngster Martin Landaluce or Czech Vit Kopriva on Saturday.
The unseasonably hot weather has caused problems for players all week in Paris.
Czech Jakub Mensik collapsed on court with cramps after his win on Wednesday, while Novak Djokovic called for matches to be moved to later in the day.
The 24-year-old Sinner was the latest to wilt under the blazing sun, seeing his 30-match winning streak, after taking titles in Rome, Madrid and Monte Carlo, Miami and Indian Wells, come to a shuddering halt.
Italy’s Jannik Sinner tries to cool down during a break of play in his men’s singles match against Argentina’s Juan Manuel Cerundolo on day 5 of the French Open tennis tournament on Court Philippe-Chatrier at the Roland-Garros Complex in Paris on May 28, 2026.
The Italian will now have to wait until next year, when injured rival Carlos Alcaraz will likely be back in action, for his next chance to complete the career Grand Slam.
The top seed was in total control and romping towards the most routine of victories before he suddenly started to struggle physically, losing three consecutive games to love.
He asked the chair umpire what his options were when 0-40 down in the next game, before being evaluated by a physio, saying he felt dizzy and needed to vomit.
Italy’s Jannik Sinner tries to cool down during a break of play in his men’s singles match against Argentina’s Juan Manuel Cerundolo on day 5 of the French Open tennis tournament on Court Philippe-Chatrier at the Roland-Garros Complex in Paris on May 28, 2026.
Sinner gingerly returned to the court after treatment to applause from the crowd, but continued to melt in the 32C heat and departed the stage again after Cerundolo took the set.
After a nine-minute delay, the cramping Sinner hobbled back out but quickly saw the fourth set slide away as Cerundolo levelled the tie.
The unheralded Argentinian appeared inspired by the opportunity to knock out the world’s best player and raced to victory against his deflated opponent, who was left bent over double after every lengthy rally.
Argentina’s Juan Manuel Cerundolo celebrates his victory against Italy’s Jannik Sinner at the end of their men’s singles match on day 5 of the French Open tennis tournament on Court Philippe-Chatrier at the Roland-Garros Complex in Paris on May 28, 2026.
The underdog was left to celebrate a sensational win after clipping away a forehand winner to reach the third round of a Slam for the first time.
“I tried to play my best, I’m going to keep trying to play my best. The clay is my best surface and I hope to be ready for the next match,” added Cerundolo.
Sinner’s compatriot Flavio Cobolli, the 10th seed, reached the third round for a second successive year with a 6-4, 6-4, 6-4 win over China’s Wu Yubing.
He will next face American Learner Tien after the 18th seed fought back to defeat world number 151 Facundo Diaz Acosta of Argentina 7-5, 4-6, 3-6, 7-6 (7/4), 6-3.
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