American Learner Tien Advances to US Open Fourth Round with Five-Set Victory

American tennis player Learner Tien defeated Jakub Mensik in a thrilling five-set match (6-3, 1-6, 6-7(2), 6-3, 6-4) in the third round of the 2026 US Open. This victory marks Tien's career-best performance at his home Grand Slam tournament.