Davenport, 32, is another.She is one of a handful of mothers still playing on the WTA Tour, returning last year after giving birth to Jagger with the specific goal of playing the Olympics.

• 英国马拉松运动员宝拉?拉德克里夫、美国网球明星林赛?达文波特以及七届世界柔道冠军、日本的谷亮子等都是她们当中比较有名的人物。