How does she go from hitting all of her balls short, pretty weak, and rarely winning consecutive matches, to being one of the hardest hitters and producing decent runs, in the space of a few months? What has she changed?
Casey Dellacqua, Jelena Jankovic, Anna-Lena Groenefeld,
Jelena Dokic, Mirjana Lucic, Sara Tomic, Sloane Stephens
Melanie Oudin, Kiki Bertens, Kaia Kanepi, Alison Riske