World No. 1 Jannik Sinner was eliminated from the French Open on May 28, 2026, following a five-set loss to Juan Manuel Cerúndolo [1, 5].

The defeat marks a significant shift in the tournament bracket, removing the top seed and ending a dominant period of form for the Italian player.

Sinner entered the second round of the competition on a 30-match winning streak [2]. However, the match turned into a battle of endurance as extreme heat in Paris impacted the players [3]. Sinner was one game away from reaching the third round before the match shifted in favor of the Argentine [4].

Physical struggles played a central role in the outcome. Sinner suffered from heat-related cramps during the match, which led to a collapse in performance [3]. This physical distress necessitated a medical timeout that became a point of contention. While some reports describe the break as a response to heat-induced illness [3], others said the medical timeout was illegal [2].

Cerúndolo capitalized on the top seed's physical decline to secure the victory in five sets [1]. The upset removes one of the primary favorites from the draw, creating a wide-open path for other contenders in the men's singles event [4].

Sinner's exit is the most prominent upset of the early rounds at Roland-Garros this year. The combination of the oppressive weather and the unexpected loss of the world's top-ranked player has shifted the momentum of the tournament.

“Sinner entered the second round of the competition on a 30-match winning streak”

Sinner's early exit disrupts the projected trajectory of the 2026 French Open and highlights the volatile impact of extreme weather on elite athlete performance. By ending a 30-match winning streak in the second round, the result creates a power vacuum in the draw that significantly increases the championship odds for other top seeds.