Anna Kournikova says she will not be a full-time trainer on "The Biggest Loser" when the U.S. reality fitness series returns next season.

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Kournikova joined the show last September.

"I enjoyed my time on the 'Biggest Loser' ranch," the athlete said in a statement issued to EW.com.

"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."