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OTRC: Anna Kournikova not returning to 'The Biggest Loser' next season, report says

Anna Kournikova, Bob Harper appear in a promotional photo for 'The Biggest Loser' season 12. (NBC)

Anna Kournikova is reportedly not returning for another season of "The Biggest Loser."

The former tennis pro joined the reality show in the fall for its 12th season as a new trainer and served on the show for just one season. Kournikova's spokesperson confirmed the exit to The Hollywood Reporter.

"I enjoyed my time on the 'Biggest Loser' ranch. Although I will not be returning as a full time trainer on season 13, I will always be a part of 'The Biggest Loser' family and my commitment to bettering lives through health and fitness will continue," Kournikova said in a statement to the industry paper.

It was announced that Kournikova joined the show for its 12th season in May, filling in a void left by Jillian Michaels who announced in December 2010 that she was leaving the show to focus on becoming a mother.

Kournikova's hiring was part of an effort to revamp the reality show. "The Biggest Loser" Executive Producer Todd Lubin told Vulture in May season 12 would see the show "getting slightly away from just the tape measure, and getting into overall well being and health."

She made an appearance on the show in October 2010 where she led a tennis work-out challenge.

The athlete is also known for her relationship with pop star Enrique Iglesias that began in 2001. During an interview with Graham Norton on BBC in 2010, she confirmed that the two are still dating but have no interest in getting married.

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