Stefanos Tsitsipas suffered the most damaging defeat of his difficult 2026 season on Monday, falling in the first round of the Rolex Monte-Carlo Masters for the first time in eight appearances at an event he has won three times.
The world No. 48 was beaten 7-5, 6-4 by 16th seed Francisco Cerundolo in one hour and 47 minutes, ending a remarkable run at a venue that had been one of the most reliable havens in tennis.
Tsitsipas arrived in Monaco with a 22-4 career record at the event, including titles in 2021, 2022 and 2024, and had never previously lost before the third round in the principality.
On clay, Cerundolo’s heavier groundstrokes and tolerance in extended rallies proved more effective. The Argentine built a double-break lead in the second set, was pulled back to 4-4 as Tsitsipas recovered, then responded immediately by breaking again to close out the match and record his 15th win of the 2026 season.
The defeat was a stark reflection of how far Tsitsipas has fallen from the player who sat inside the world’s top ten just twelve months ago. Since opening the year with an undefeated run at the United Cup, Tsitsipas had gone 6-8 in tour-level tournaments, with his Davis Cup wins coming against opponents ranked No. 222 and 818 respectively, offering little indication of competitive form at the highest level.
The defeat confirmed Tsitsipas will drop outside the top 60 for the first time since April 2018 — a fall of more than 50 places from the world No. 8 ranking he held exactly a year ago.
The reaction from the tennis community was pointed. Former world No. 10 Arnaud Clement did not hold back in his assessment. “What stands out is Stefanos Tsitsipas’ inability to find his form,” Clement said. “We’ve known he’s been struggling for a long time, and we saw the quality of the match, which was quite disappointing and rather disastrous at times. There’s undoubtedly some serious soul-searching to be done by Stefanos Tsitsipas.”
Cerundolo, who captured his fourth career title in Buenos Aires in February and reached the round of 16 at the Australian Open, advances to face Tomas Machac in the second round, with a chance to improve upon his career-high ranking of No. 18.
Tsitsipas is next scheduled to compete at the ATP 500 tournament in Munich, which begins April 13. How long his recovery back up the rankings will take remains one of the more uncomfortable open questions of the clay season.
