NEW YORK—Caroline Wozniacki can’t quite decide if daughter Olivia is her biggest fan or future rival as her eldest child throws herself into tennis ahead of her US Open comeback.

You've seen the cover, now there's the rest of Caroline Wozniacki's ESPN Body Issue spread (which hit newsstands on Friday). The former world No. 1 put it all out there, and talked about how she ...

Serena Williams beat Caroline Wozniacki 6-3, 6-3 in the US Open final It took Williams just 75 minutes to overcome her close friend in New York Wozniacki says Williams helped her get over the ...