WTA Finals: Serena Williams achieves three-peat; beat Simona Halep 6–3, 6–0 in final

Cara Black (left) of Zimbabwe and Sania Mirza in action against Kveta Peschke of Czech Republic and Katarina Srebotnik of Slovenia during their doubles semi-final match on day 6 of the WTA Finals. The pair came back from a set down to defeat Peschke and Srebotnik to advance to the final. (Photo 49 © Lim Yong Teck/Red Sports)