Anna Kournikova celebrates a milestone today — it's her 30th birthday! The fit former tennis star showed off her hot body on the court for years but really turned up the heat when she linked up with the equally gorgeous Enrique Iglesias. Anna has had plenty of memorable skin-filled moments, from sexy getaways with Enrique to steamy poses for Sports Illustrated— click through to see them all!
Flynet, Bauer-Griffin Online
