Playing less extended my career, says Number 1 Serena
World number one Serena Williams says that playing less tennis has helped extend her glittering career, as she acknowledges in the wake of Li Na's retirement that players' bodies can "betray" them. Duration: 00:36
World number one Serena Williams says that playing less tennis has helped extend her glittering career, as she acknowledges in the wake of Li Na's retirement that players' bodies can "betray" them. Duration: 00:36
