Learner Tien vs Felix Auger-Aliassime — R16 — Halle Open

Down a set after Tien took the opener in a tiebreak, Auger-Aliassime leaned on the serve that never wavered — 88% of first-serve points won to Tien's 76%, and 22 aces against just one double fault. The flip came in set two, where he won 96% behind the first ball and broke twice late, in games 11 and 12, to even the match. The decider went to another breaker, Tien clawing back the break in game 8, but Auger-Aliassime closed it 7-5 in the tiebreak. He faces Frances Tiafoe next.