There is a lot at stake when No. 1 Jannik Sinner meets No. 2 Carlos Alcaraz in the U.S. Open men’s final on Sunday — with President Donald Trump expected to be at Arthur Ashe Stadium. Sinner, a 24-year-old from Italy, is trying to become the first repeat men’s champion at Flushing Meadows since Roger Federer won five championships in a row there from 2004 through 2008.

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