Jack Kramer, American tennis player and sportscaster (born 1921)

Jack Kramer

American tennis player (1921–2009)

John Albert Kramer was an American tennis player of the 1940s and 1950s, and a pioneer promoter who helped drive the sport towards professionalism at the elite level. Kramer also ushered in the serve-and-volley era in tennis, a playing style with which he won three Grand Slam…