A Tien out of Tien match ✅ Irvine’s Learner Tien digs deep to outlast Jakub Mensik 6-3, 1-6, 6-7(7), 6-3, 6-4 in a five set thriller! He’s now 5-0 in five setters and is headed to the fourth round of a Grand Slam for the first time in his career. 📸: Dustin Satloff/USTA #LearnerTien #TeamSoCal #USOpen #USTASoCal #SoCalTennis