06/06/2012 03:49 pm ET Updated Oct 11, 2012

Anna Kournikova's Style Evolution: From Sporty And Sexy To...More Sporty And Sexy (PHOTOS)

Anna Kournikova is officially retired from tennis but let's be honest: that was never what she was known for. Though the Russian-born bombshell gained notoriety in the late '90s for her doubles game, the majority of her fame is rooted in her looks, model body and ten year relationship with singer Enrique Iglesias).

While Kournikova's had to put her tennis career on the back-burner due to multiple injuries, she's a sports star that continues to capture our attention with her sultry style. She's been spotted front-row at fashion week and at high-wattage red carpet events looking stunning in body-hugging black dresses. When Kournikova does wear color, she favors pastel or metallic. Aside from her dress-up game, she's also a laid back tomboy at heart, wearing jeans and sneakers whenever she gets a moment away from the spotlight.

To celebrate her 31st birthday on June 6th, we're taking a look back at Kournikova's most memorable looks. From tennis shoes and skirts to sexy cocktail attire and runway-ready gowns -- which look is your favorite?

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Anna Kournikova