Twice runner-up Dominic Thiem suffered a shock loss in the French Open first round as Pablo Andujar produced a stunning comeback against the world number four.
Spain’s Andujar trailed Austria’s US Open winner Thiem by two sets but triumphed 4-6 5-7 6-3 6-4 6-4 in a thrilling match at Roland Garros.
German world number six Alexander Zverev had to fight back from two sets down to beat compatriot Oscar Otte.
Zverev, 24, won 3-6 3-6 6-2 6-2 6-0.
Elsewhere in the men’s singles draw on Sunday, British number one Dan Evans fell to a 1-6 6-3 6-3 6-4 defeat by Serbia’s Miomir Kecmanovic.
‘A very special moment’ for Andujar
Thiem’s defeat leaves the bottom half of the men’s singles draw especially open because the ‘big three’ of Novak Djokovic, Rafael Nadal and Roger Federer are all in the other half.
Having lost to Nadal in the 2018 and 2019 finals in Paris, Thiem earned his first major title at the US Open last September but took two months away from the tour earlier this year to have a “small reset” because of the physical and emotional impact of winning a Grand Slam.
Before his opener at the French Open he had won only five matches in the past three months.
World number 68 Andujar, 35, turned professional in 2003 and, although he beat Roger Federer in Geneva earlier in May, this was his first victory over a player ranked in the ATP’s top five.
Having broken Thiem’s serve in the eighth game of the third set to end the Austrian’s hopes of sealing a comfortable win, Andujar kickstarted a memorable comeback by racing into a 4-1 lead in the fourth.
Neither player could hold serve at the start of the deciding set, but Andujar consolidated another break to take a 4-2 lead and a stunned Thiem could not find a response.
“It’s a very special moment because I’m 35 and I don’t know how long I’m going to play,” said Andujar, who will play Radu Albot or Federico Delbonis in the second round.
“It was very difficult, in the third set he wasn’t quite as strong. I didn’t think I was in my best shape, but the belief was the key to the win today.”
Zverev avoids opening-round exit
Zverev, who won his second Madrid Open title earlier this month before losing to Nadal in the Italian Open quarter-finals, was able to avoid suffering the same fate as Thiem.
But he was made to work hard to do so against 27-year-old qualifier Otte, ranked 152 in the world.
Zverev immediately responded after Otte made the first break of serve in the contest to trail 4-3 – but he failed to hold serve once more as his compatriot went on to take a surprise first set.
Zverev’s task was made even more difficult when a Otte won four consecutive games to close out the second set in impressive fashion.
But the momentum shifted as Zverev raced into a 5-1 lead on his way to comfortably claiming the third set – and consecutive breaks in the fourth set up a decider.
By then, a deflated Otte could offer no resistance as Zverev – who will face Russian Roman Safiullin or Spain’s Carlos Taberner next – cruised to victory in the fifth.
The closing stages of the match were played without spectators because of France’s curfew of 21:00 local time (20:00 BST) as part of coronavirus restrictions.