The Biggest Loser: Anna Kournikova Out

Although the former tennis pro "was not fired," the reality show "wasn't the right fit for her," a source tells PEOPLE

Anna Kournikova is leaving The Biggest Loser after just one season

The Biggest Loser is my calling' - The Royal Gazette, Bermuda News, Business, Sports, Events, & Community

Anna Kournikova Is “My Girl Friday” [VIDEOS & PHOTOS]

Anna Kournikova Biggest Loser 052311 16.JPG Orig Pix Taken 2005 in Florida MIAMI BEACH, FL - MAY 23: (Radar) It looks like 'The Biggest Loser' might have found another new trainer. According

Tennis Star Anna Kournikova Joins NBC's Hit Series The Biggest Loser for Season 12 by skillfulspecies29 - Issuu

Anna kournikova tennis star hi-res stock photography and images - Page 3 - Alamy

Anna Kournikova is leaving The Biggest Loser after just one season

Biggest Loser: Battle of the Ages!!!!

The Biggest Loser': Who Should Replace Anna Kournikova?

Biggest Loser' stars on Kournikova's exit