Jack Kramer, a three-time Grand Slam winner and a major US tennis star in the 1940s, died at his Los Angeles home on Saturday, the Los Angeles Times reported. Kramer was 88.
Kramer was world number one in the late 1940s, winning the 1947 Wimbledon title and the 1946 and 1947 US championships, forerunner of the US Open. Kramer also captured seven Slam doubles titles, all at Wimbledon or in New York.
The cause of death was cancer that had been diagnosed in July, the newspaper reported on Sunday.
Kramer, a 1968 inductee into the International Tennis Hall of Fame, retired in 1954 due to arthritis in his back.
He helped fight for changes in the elite tennis circuit, helping found the Association of Tennis Professionals and serving as its first director in 1972, paving the evolution for today's ATP Tour.
Kramer operated the ATP event in Los Angeles as well as a golf course and he owned more than 100 race horses.
The last tennis match he saw was on July 27, an exhibition between retired legend Pete Sampras and Marat Safin, who is retiring at the end of this year.