Anna Kournikova through the years

Sun Sentinel file

Anna Kournikova smiles at opponents Jan-Michael Gambill and Gil de Ferran as her teammate Helio Castroneves awaits the serve.

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With a Hollywood-style handprint, Anna Kournikova opens the OMEGA stand at the Miljonair Exhibition in Amsterdam, the Netherlands, flanked at left by Beno Lesser, president of Gassan Diamonds, and at right by Steven Urquhart, president of Omega.

Sun Sentinel file

Anna Kournikova took time from practice for the Nasdaq-100 to play a game of doubles with Helio Castroneves, who will race in the Toyota Indy 300. Their opponents were tennis star Jan-Michael Gambill and Castroneves' teammate, Gil de Ferran.

Joe Cavaretta, Sun Sentinel

Tennis player Anna Kournikova waits her turn to run in the Nautica South Beach Triathlon in Miami Beach. Kournikova was part of a celebrity relay team in the event.

Sun Sentinel file

As Helio Castroneves awaits the serve, doubles partner Anna Kournikova expresses some disapproval to opponents Jan-Michael Gambill and Gil de Ferran.

Robert Duyos, Sun Sentinel

Enrique Iglesias and Anna Kournikova watch each other instead of the game.

Paul Faith, AFP

Russian tennis star Anna Kournikova laughs as she hoists her dress skirt while modeling at the Triology fashion show in Dublin, Ireland.

Sun Sentinel file

Anna Kounikova watches her return against Barbara Schett.

Sun Sentinel file

Anna Kournikova takes in the sights during the Red Carter fashion show at the Raleigh hotel in Miami Beach.

PRNewsFoto

With a Hollywood-style handprint, Anna Kournikova opens the Omega stand at the Miljonair Exhibition in Amsterdam,the Netherlands. She is flanked at left by Beno Lesser, president of Gassan Diamonds, and at right by Steven Urquhart, president of Omega.

Doug Murray, Getty Images

Anna Kournikova poses on the red carpet at the ATP Sony Ericsson party at the Epic night club in Miami.

Robert Duyos, Sun Sentinel

Enrique Iglesias Jr. and Anna Kournikova at a Miami Heat game against the Milwaukee Bucks.

Joe Cavaretta, Sun Sentinel

Tennis star Anna Kournikova is seen after finishing the run in the Nautica South Beach Triathlon in Miami Beach. Kournikova was part of a celebrity relay team.

Sun Sentinel file

Anna Kournikova walks back to the net after talking to race car driver Helio Castroneves, who partnered with her for a doubles match against driver Gil de Ferran and tennis pro Jan Michael Gambill.

Julian Finney, Getty Images

Martina Hingis of Switzerland, left, and Anna Kournikova of Russia in action during their Ladies Invitational Doubles match against Helena Sukova of Czech Republic and Andrea Temesvari of Hungary on Day 10 of the Wimbledon Lawn Tennis Championships at the All England Lawn Tennis and Croquet Club in London.

Chris Haston, NBC

Anna Kournikova

Sun Sentinel file

Anna Kournikova pauses during a doubles match with partner Helio Castroneves against Jan-Michael Gambill and Gil de Ferran.

Sun Sentinel file

Race car driver Helio Castroneves and doubles partner tennis star Anna Kournikova celebrate their victory over tennis' Jan-Michael Gambill and Castroneves' Marlboro Penske teammate, Gil de Ferran. Kournikova and Gambill took time out of practice for the Nasdaq-100 to give the drivers, preparing for the Toyota Indy 300, a few pointers.

Chris Haston, NBC

From left, Dolvett Quince, Alison Sweeney, Bob Harper and Anna Kournikova.

Chris Haston, NBC

From left, Dolvett Quince, Alison Sweeney, Anna Kournikova and Bob Harper.

Richard Biebrich, Sun Sentinel

Anna Kournikova returns a volley to Gil de Ferran and Jan-Michael Gambill. Kournikova and Gambill took time from their practice schedules for the Nasdaq-100 at Crandon Park on Key Biscayne to play a game of doubles with de Ferran and Helio Castroneves, who will be competing in the Indy Racing League Toyota Indy 300 at Homestead-Miami Speedway. Castroneves, a two-time Indy 500 winner, was Kournikova's partner.

PRNewsFoto

Anna Kournikova, styled as Marilyn Monroe, is overwhelmed with diamonds from Omega Bijoux collection at the Miljonair Exhibition, Amsterdam, the Netherlands. The event marked the official launch of the Omega Bijoux collection in the Netherlands.

Chris Haston, NBC

Anna Kournikova

Sun Sentinel file

Anna Kournikova took time from practice for the Nasdaq-100 to play a game of doubles with Helio Castroneves, who will race in the Toyota Indy 300. Their opponents were tennis star Jan-Michael Gambill and Castroneves' teammate, Gil de Ferran.

Sun Sentinel file

Anna Kournikova shares a laugh with doubles partner Helio Castroneves during a match with Jan Michael Gambill and Gil de Ferran. Kournikova and Gambill were taking time out of practice for the Nasdaq-100 to give the IndyCar drivers some pointers before their event at Homestead, the Toyota Indy 300.

Michael Buckner, Getty Images for IMG

Tennis player Anna Kournikova in the front row at Red Carter 2009 collection fashion show during Mercedes-Benz Fashion Week Swim at the Raleigh Hotel in Miami.

Jemal Countess, Getty Images for K-Swiss

Tennis player Anna Kournikova wears K'Swiss 2009 fashion as she walks the runway at the "Play Nice" runway show and party hosted by K-Swiss to kick off open week fever at Skyline Gallery in New York City.

Evan Agostini, Getty Images

Tennis star Anna Kournikova kicks off a nationwide search for the "Completely Irresistible Face" to introduce the new Gillette Complete Skincare line of premium skin-care products at Times Square Studios in New York City.

Clive Brunskill, Getty Images

Anna Kournikova of Russia sticks out her tongue next to Martina Hingis (not shown) of Switzerland during their Ladies Invitational doubles match against Anne Hobbs and Samantha Smith of Great Britain on Day 8 of the Wimbledon Lawn Tennis Championships at the All England Lawn Tennis and Croquet Club in London.