Jannik Sinner Advances to US Open Third Round, Vows to Sharpen Serve Despite Dominant Win
World No. 1 Jannik Sinner extended his hard-court Grand Slam winning streak to 23 matches with a decisive victory over Alexei Popyrin at the US Open 2025. Despite the clinical result, Sinner highlighted serve improvements as crucial ahead of his third-round clash with Denis Shapovalov.
