The time is now for Petra Kvitova, Eugenie Bouchard and Simona Halep. And they know it. With Serena Williams' mysterious slip, the rising stars have battled their way into Grand Slam finals and made the sport all the more compelling.
Much has changed in the past year for Agnieszka Radwanska since she decided to replace her father with a new coach. A world No. 2 ranking. A win in a high-profile WTA event. A Slam final appearance. Is a U.S. Open win next?