Andy Roddick remains the last American man to win the US Open, with the country’s 23-year wait continuing since his 2003 triumph
Ben Shelton and Taylor Fritz lead a strong group of American contenders, with Tien, Nakashima, Tiafoe and Tommy Paul also in the mix
With Jannik Sinner absent, the opportunity has opened up, but Alcaraz, Djokovic and other top stars remain major obstacles