Unseeded Struff knocks out Tsitsipas in Cincinnati
Fifth-seed Stefanos Tsitsipas's Cincinnati Masters challenge ended in the second round on Wednesday as he was beaten 6-4 6-7(5) 7-6(6) by unseeded German Jan-Lennard Struff.
Struff, who has yet to win an ATP singles title in his decade-long career as a professional, was on top for most of the match against the 21-year old Greek.
He served for the match in the second set but Tsitsipas managed to stay alive by taking the second set on a tiebreak.
Among the other surprises on Wednesday, world number five Kei Nishikori was beaten 7-6(2) 6-4 by Japanese qualifier Yoshihito Nishioka.