Solution:

Althea Gibson was an American tennis player and professional golfer, and the first Black athlete to cross the color line of international tennis. In 1956, she became the first African American to win a Grand Slam title (the French Championships). The following year she won both Wimbledon and the US Nationals (precursor of the US Open), then won both again in 1958, and was voted Female Athlete of the Year by the Associated Press in both years. In all, she won 11 Grand Slam tournaments, including five singles titles, five doubles titles, and one mixed doubles title.