Maria Sharapova is, without question, one of the most stunning women in professional tennis today.
She served as a trainer and attempted to help the contestants lose weight.
There are several female athletes who also dabble in modeling, but few even come close to looking as good as Sharapova does in this image.
She was a born tennis player, and she has recorded one of the fastest serves at Paris Indoors of 1998 going at 111.
This throwback shot shows a youthful Kournikova looking back at the cameraman while wearing a somewhat standard black tennis skirt.
Fun Fact: Anna Kournikova's best singles Grand Slam performance came in 1997 when she made it to the semifinal round at Wimbledon.