The fifth-seeded Fritz shakes off a foot injury for a 6-3, 6-4, 1-6, 7-6 (4) victory over 17th-seeded Karen Khachanov, faces two-time defending champion Alcaraz next.

Morgan Riddle, the girlfriend of Taylor Fritz, arrives to watch the men's singles quarter final match between Taylor Fritz of the U.S. and Karen Khachanov of Russia at the Wimbledon Tennis Championships in London, Tuesday, July 8, 2025. Credit: AP

A motivational note Taylor Fritz wrote to himself after losing at Wimbledon four years ago was shared on social media by his girlfriend Morgan Riddle, whom credits for having such a big impact on him rising to No.