Serena Williams' ex-coach, Rennae Stubbs, voiced her opinion about the recent calls against NBA player Amen Thompson.

"I think the WTA is kind of forcing us more to play the events, even when sometimes we would pass them," said Swiatek.

Madison Keys pulled through a tight, nervy match against Anna Kalinskaya, then celebrated a milestone by becoming the third ...

With wins over Ann Li and Anna Kalinskaya, Coco Gauff and Madison Keys advanced to the Round of 16 -- and four more U.S. players are still in the hunt.