Francisco Cerundolo Stuns Stefanos Tsitsipas at Rolex Monte-Carlo Masters

In a result that has sent shockwaves through the clay-court season, Francisco Cerundolo delivered a commanding first-round performance at the Rolex Monte-Carlo Masters, eliminating three-time champion Stefanos Tsitsipas in straight sets. The Argentine No. 16 seed secured a 7-5, 6-4 victory on Monday, marking a pivotal shift in the head-to-head dynamic between the two players.

For Tsitsipas, the defeat is more than just a first-round exit. The Greek star, who has historically dominated at the Monte-Carlo Country Club with a 22-4 record across seven appearances, now finds himself tumbling to world No. 64—his lowest ranking since 2018. Conversely, Cerundolo is riding a wave of momentum, currently sitting at a career-high No. 17 in the PIF ATP Live Rankings.

Breaking the Deadlock in Monaco

Heading into this match, Cerundolo had never beaten Tsitsipas. Their previous encounters took place on indoor hard courts in Basel and Paris in 2024, both of which went the distance and ended in Tsitsipas’ favor. However, the conditions in the principality played into the Argentine’s hands.

The match was defined by shifting momentum and a struggle for consistency from the Greek. Cerundolo asserted himself early, breaking in the opening game of the first set. While Tsitsipas attempted to claw back, Cerundolo showed mental fortitude at a critical juncture, breaking at 3-5 to maintain control and take the set 7-5.

The second set began with a blistering run by Cerundolo, who raced to a 4-0 lead. The match appeared to be slipping away quickly, but Tsitsipas staged a resilient fightback to level the score at 4-all. The rally was short-lived; Cerundolo responded immediately with another break to close out the match 6-4.

A key factor in the outcome was Tsitsipas’ struggle with precision, as the former World No. 3 committed 38 unforced errors throughout the contest.

A Milestone for Argentine Tennis

This victory represents a significant statistical milestone for Cerundolo. The win marks his 50th career match victory at the ATP Masters 1000 level, placing him in the company of Argentina’s most successful players at this tier of competition.

Beyond the historical context, the win is a cornerstone of Cerundolo’s 2026 campaign, representing his 15th victory of the season. It also signals a breakthrough in Monte-Carlo, where he had previously failed to advance past the second round in any of his three prior appearances.

The Fallout for Tsitsipas

The loss closes a difficult chapter for Tsitsipas. After winning the title in 2024, his defense in 2025 ended in the quarterfinals against Lorenzo Musetti. The current slide in form and ranking suggests a challenging period for the Greek, who has struggled to regain the dominance he once held on the clay of Monte-Carlo.

Cerundolo acknowledged the difficulty of the task, noting that Tsitsipas’ three titles at the venue made him a formidable opponent. However, the Argentine credited his mental toughness for closing out the match after the Greek’s second-set surge.

Looking Ahead: The Second Round

With the upset complete, Cerundolo moves into the second round to face Czech player Tomas Machac. Machac advanced to the next stage following a hard-fought victory over Daniel Altmaier, winning 6-4, 1-6, 6-3.

Cerundolo will look to maintain his current form as he attempts to reach the round of 16, a feat that would further cement his standing among the clay-court elite this season.

Next Checkpoint: Francisco Cerundolo vs. Tomas Machac, Second Round of the Rolex Monte-Carlo Masters.

Do you think Cerundolo can maintain this momentum and make a deep run in Monte-Carlo? Share your thoughts in the comments below.