Coco Gauff has received advice from Rick Macci—the former coach of Serena Williams—on how to improve her weakest point at the moment: her serve. The world No. 2 survived her third-round match ...

Anastasija Sevastova wasn’t expecting a result like this. A year ago, she wasn’t even sure she’d ever play tennis again.

There, Osaka produced another big win, as Wiktorowski achieved something he had failed to do during his four-year stint as ...