Alexander Zverev and Karen Khachanov Advance to US Open Men's Semifinals; Zverev Achieves Grand Slam Semifinal Sweep

Alexander Zverev has reached the US Open semifinals, marking a significant career milestone by making the last four of all four Grand Slams in a single season. Karen Khachanov also secured a spot in the semifinals after his opponent, Alexander Blockx, retired from their quarterfinal match due to injury.