Alcaraz–Sinner rivalry

The tennis rivalry between Carlos Alcaraz and Jannik Sinner emerged in the early 2020s. Colloquially referred to by the media and fans as "Sincaraz", a portmanteau of their names, the pair have faced each other 16 times since 2021, with Alcaraz leading the rivalry 10–6, including 4–2 at majors and 5–3 in finals.

Alcaraz and Sinner are the two most successful men's tennis players born in the 21st century. Both have won multiple major titles—Alcaraz seven and Sinner four—and both have held the world No. 1 ranking. Some commentators have dubbed them the "New Two" or the "Big Two", in reference to the Big Three. Between them, they have split the last nine major titles, and have won 11 of the last 14, dating back to the 2022 US Open.

The rivalry has been described as "potentially era-defining". They have played multiple matches regarded as classics, including their 2022 US Open quarterfinal and the 2025 French Open final, both of which Alcaraz won after saving match points in the fourth set.