Zverev and Shelton face late-night turnaround in US Open semi-finals
The US Open men's semi-finals in New York pit Alexander Zverev against Karen Khachanov and Ben Shelton against Frances Tiafoe, with Zverev and Shelton both coming off matches that finished after 1am. Coaches warn the lack of sleep could affect performance, and the tournament has already made scheduling tweaks after Andy Murray's 4am finish at the 2023 Australian Open.