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·250·ClayLearner Tien defeated Alexander Bublik 6-1, 4-6, 7(7)-6(5) — Geneva Open 2026 Semifinal.
Learner Tien and Alexander Bublik: Learner Tien leads 2–0 across 2 recorded meetings.
The world No. 20 Learner Tien flipped a serve disadvantage into an upset of No. 10 Alexander Bublik, absorbing 10 aces to his one and still converting 4 of 6 break points to the Kazakh's 3 of 3. The difference was Tien's second-ball steadiness — he won 59% behind his second serve and 58% of second-serve return points, while Bublik managed just 42% on his own seconds. Tien saved nothing on the three break points he faced but didn't need to, closing a 7-5 third-set tiebreak to lead the H2H 2-0.