Zverev aims to halt Khachanov run as Tiafoe and Shelton clash for spot in US Open final

Friday's US Open schedule features the men's semi-finals, with three of the four players aiming for a career-best Grand Slam result. The sole exception is reigning Roland Garros champion Alexander Zverev, who will look to halt the unexpected run of Karen Khachanov. Home hopes Frances Tiafoe and Ben Shelton will then battle it out for a place in the final.