Anna Kournikova is a former Russian professional tennis player who rose to international fame in the late 1990s and early 2000s. Though she never claimed a singles title on the Women’s Tennis Association (WTA) Tour, she achieved significant success in doubles, most notably partnering with Martina Hingis to win two Australian Open doubles championships (1999 and 2002). Kournikova became one of the most recognizable figures in tennis due to her on-court talent, high-profile endorsements, and widespread media coverage of her personal life. After retiring from professional tennis at a relatively young age due to injuries, she continued to appear in various fitness-related programs and served as a trainer on the reality TV show The Biggest Loser. She has also long been in a well-publicized relationship with singer Enrique Iglesias, with whom she shares a family.