2026 Us Open Tennis : Day 4: Upsets, Breakout Stars, and Alcaraz’s Comeback

Day four of the US Open delivered major surprises across both draws. Mariano Navone continued his remarkable run by defeating Matteo Berrettini in four sets after a dramatic tiebreak, while Alex Michelsen produced a clinical straight-sets victory over Brandon Nakashima. Primo also recaps strong performances from Ben Shelton, Tommy Paul, Daniil Medvedev, and Stefanos Tsitsipas, highlighting the growing momentum among American players and emerging contenders.On the women’s side, Aryna Sabalenka dominated in just 53 minutes, Karolina Muchova nearly cruised through her match, and Elina Svitolina survived a demanding three-set battle. Carlos Alcaraz also overcame a shaky opening set against Portugal’s Jaime Faria by recalibrating his baseline game and taking control. With the tournament moving into the crucial third round, Primo previews the matchups ahead and explores the Cinderella stories that could reshape the US Open.