Overview
- Learner Tien, who won late on Saturday night, defeated 17th-seeded Jakub Mensik in a five-set match that ended around 1:30 a.m. at Louis Armstrong Stadium.
- The match finished 6-3, 1-6, 7-6 (7-2), 3-6, 6-4 and reinforced Tien’s reputation for composure in long matches while extending his reported career record in five-set matches to 5-0.
- The 20-year-old’s victory makes him the youngest American man to reach the US Open fourth round since Andy Roddick in 2002.
- Tien will face Karen Khachanov in the fourth round, the first meeting between the two players.
- Tien’s advance is part of a larger U.S. surge at this US Open with five American men and five American women in the Round of 16, a development that creates clearer paths for ranking gains and deeper runs by young American players.