Monica Seles (Serbian: Моника Селеш, Monika Seleš, Hungarian: Szeles Mónika, born December 2, 1973) is a former World No. 1 professional tennis player and a member of the International Tennis Hall of Fame. She was born and raised in Novi Sad, SR Serbia, SFR Yugoslavia, to Hungarian parents. She became a naturalized United States citizen in 1994 and also received Hungarian citizenship in June 2007. She won nine Grand Slam singles titles, winning eight of them while a citizen of Yugoslavia and one while a citizen of the United States.
In 1990, at the age of 16, Seles became the youngest-ever French Open champion. She went on to win eight Grand Slam singles titles before her 20th birthday and was the year-end World No. 1 in 1991 and 1992. However, in April 1993 she was the victim of an on-court attack, when a man stabbed her in the back with a 9-inch-long knife. Seles did not return to tennis for over two years. Though she enjoyed some success after rejoining the tour in 1995, including a fourth Australian Open success in 1996, she was unable to consistently reproduce her best form. She played her last professional match at the 2003 French Open, but did not officially retire until February 2008.
In June 2011, she was named one of the "30 Legends of Women's Tennis: Past, Present and Future" by Time.