Reality TV Credentials:
Anna Kournikova is a trainer on the reality competition The Biggest Loser, where she helps contestants lose weight. She joined The Biggest Loser in Season Twelve, replacing Cara Castronova.
Kournikov has worked with numerous charitable organizations involved in health and fitness efforts around the world, including the Boys & Girls Club of America. She helped Cartoon Network launch its Move It Movement campaign to get kids moving (rather than sitting around all day watching cartoons). Kournikova has also worked to on HIV/AIDS and malaria prevention.
While a professional tennis player Anna Kournikova became one of the best known women's tennis players in the world.
Born in Russia, Kournikova began competing when she was just eight-years-old. After she moved to the US to train, Kournikova quickly began collecting junior titles, winning the European Championships, the Italian Open Junior and the Junior Orange Bowl. She then became the highest ranked junior singles player and won the ITF World Championship.
Kournikova turned pro in 1995. In the following year, she won two ITF singles tournaments, and a few years later, at the Lipton Championships she set an as yet unbroken world record by defeating four consecutive top 10 players in a four-day period during a single tournament.
The youngest player ever to win a Fed Cup match, Kournikova went on to rank number one in the world in doubles (1999) and number eight in singles (2000). She also won two Grand Slam Doubles titles and three Grand Slam Mixed Doubles Finals.
Now retired from professional tennis, Kournikova has become a certified trainer and joined The Biggest Loser staff.