Former world number one Monica Seles was inducted into the International Tennis Hall of Fame along with three other players at Newport, Rhode Island on Saturday. Seles, 35, won nine Grand Slam singles titles in the 1990s, including four Australian and three French Opens. She was world number one for 178 weeks, and remains as the French Open's youngest champion, winning in 1990 aged at 16 years and six months. Born in Yugoslavia, she became a U.S. citizen in 1994. She captured 53 singles titles and six doubles titles and won more than 14 million US dollars in prize money over 15 years. Her career was interrupted in 1993 when she was stabbed in the back by a spectator in Hamburg, Germany, and did not play for 27 months. She won her final grand slam at the 1996 Australian Open. Joining Seles in the Hall of Fame were Andres Gimeno, one of Spain's most prominent players of the 1960s; Donald Dell, a former U.S. Davis Cup player; and the late Robert Johnson. 