American players have been thriving on the WTA Tour this season, led by Australian Open champion Madison Keys, who joined regular top-10 stars Jessica Pegula and Coco Gauff at the top of the game.

In Rome, Rybakina kicked off her campaign by beating Eva Lys in her opener. But then, she picked up a surprise 6-2 6-4 loss ...

Zheng Qinwen earned her first victory over top-ranked Aryna Sabalenka 6-4, 6-3 to set up an Italian Open semifinal match ...