The #WhatPowersYou Gallery
The biggest WTA stars are telling us what powers them – here are seven of their answers…
#WhatPowersYou: Agnieszka Radwanska
#WhatPowersYou: Ana Ivanovic
#WhatPowersYou: Caroline Wozniacki
#WhatPowersYou: Maria Sharapova
#WhatPowersYou: Simona Halep
#WhatPowersYou: Petra Kvitova
#WhatPowersYou: Serena Williams