ATP No. 1 Jannik Sinner and former Cincinnati Open champion Coco Gauff are in action Aug. 14. Follow live from Mason.

French qualifier Terence Atmane toppled another top-10 player in Holger Rune on Thursday to line up a semi-final showdown ...

An in-depth look at the eight Cincinnati Open quarterfinalists, how they got here and what to expect (and watch for) as they play for a spot in the semifinals.