NEW YORK (AP) — Jannik Sinner took a medical timeout — exactly why wasn't immediately clear — during a mid-match lull before retaking control for a 6-1, 3-6, 6-3, 6-4 victory over Montreal's Felix Auger-Aliassime in the U.S.
Sinner ends Auger-Aliassime's run in U.S. Open semifinals

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