Monica Seles (Hungarian: Szeles Mónika, Serbian: Моника Селеш, Monika Seleš, born December 2, 1973) is a former Yugoslav world no. 1 professional tennis player and a member of the International Tennis Hall of Fame. An ethnic Hungarian, she was born and raised in Novi Sad, SFR Yugoslavia. She became a naturalized United States citizen in 1994 and also received Hungarian citizenship in June 2007. She won nine Grand Slam singles titles, eight of them while a citizen of Yugoslavia and one while a citizen of the United States.