Anna Kournikova net woth: Anna Kournikova is a Russian-American retired professional tennis player who has a net worth of $50 million. Her tennis ability made Kournikova one of the best known tennis stars in the world, even though she has never won a WTA singles title. She reached the peak in her career playing doubles, where she had at times been the World No. 1 player. Along with her partner Martina Hingis, Kournikova won Grand Slam titles in Australia in 1999 and 2002. They often referred to themselves as the "Spice Girls of Tennis". However, left this "dream-team" and ended her professional tennis career prematurely at the age of 21 due to serious back and spinal problems. She now resides in Miami Beach, Florida, and sometimes plays in exhibitions and doubles for the St. Louis Aces of World Team Tennis. Not being on the court anymore, Kournikova replaced Jillian Michaels as a weight-loss trainer for the12th season of the show, but she did not return for season 13. In addition to tennis and TV work, she is also a Global Ambassador for Population Services International's Five & Alive program, dedicated to health crises facing children under the age of five and their families.