Bill Tilden — American Athlete born on February 10, 1893, died on June 05, 1953

William Tatem Tilden II, nicknamed "Big Bill," was an American male tennis player. He is often considered one of the greatest tennis players of all time. Tilden was the World No. 1 player for six years from 1920 through 1925. He won 14 Major singles titles including ten Grand Slams, one World Hard Court Championships and three Pro Slams. He also won a record seven US Championships titles... (wikipedia)

Never change a winning game; always change a losing one.
In these days of modern tennis a player is as strong as his weakest stroke.