MELBOURNE: Australian tennis great Ashley Cooper, who won four Grand Slam singles titles in the 1950s, died after a long battle with illness on Friday. He was 83. Part of a cohort of champions coached by Harry Hopman, Cooper won the Australian championship, Wimbledon and U.S. Nationals in 1958, one of only 11 men to claim three Grand Slam crowns in a calendar year. Underlining the strength of Australian tennis in the era, Cooper won all four of his Grand Slam crowns by beating compatriots in the final. Wielding a potent backhand and renowned for his fitness, the serve-volleying Cooper beat Neale Fraser for his maiden Grand Slam title at the 1957 Australian Championships and again for the Wimbledon trophy the following year. Cooper, who was inducted into the International Tennis Hall of Fame in 1991, defeated Mal Anderson to defend his Australian title and felled the Queenslander in the U.S. final that year. He also claimed four Grand Slam doubles titles, partnering Fraser in three of them, and helped Australia win the 1957 Davis Cup before turning professional in 1959. He later served as a tennis administrator at state and national level for decades.