Tennis News : Letting out anger and frustration shook me up - Tsitsipas on win over Isner

Fifth seed Stefanos Tsitsipas said he struggled at the start of the match against big serving John Isner, but was able to clear his head in order to defeat the American in four sets - 5-7, 6-3, 7-6 (7-3), 6-1, to reach the fourth round of the French Open on Friday.