Jannik Sinner and Carlos Alcaraz, the world's undisputed top two players, will square off in a third straight Grand Slam final on Sunday at the US Open with President Donald Trump in attendance.

Top seed Sinner is the reigning champion and aiming to become the first man to successfully defend the US Open crown since Roger Federer won the last of five consecutive titles in 2008.

Alcaraz, who won the first of his five Grand Slam titles in New York as a teenager three years ago, is the first man in a decade to reach the US Open final without dropping a set.

It sets up a thrilling climax to a tournament preparing to host Trump, the first sitting president to attend the US Open since Bill Clinton, who watched the women's final in 2000.

It is the latest in a series of visits to major sportin

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