Tien Serves Past Baez 6-3 7-6 in Cincinnati Round of 64

Learner Tien came through the Cincinnati Round of 64 without dropping a set, edging Sebastian Baez 6-3, 7-6 on the hard courts. The American's serve was the difference: he landed 70.5% of his first deliveries and won 81.4% of those points, adding five aces against a single double fault. Baez, by contrast, found only 61.7% of his first serves and could convert just 59.5% of them, leaving him under pressure even though he held on to force a second-set tiebreak. It was a composed performance from Tien, who backed up his first-strike numbers with a steady 50% return of his own second-serve points and advanced at a Masters 1000 event.