Maureen Catherine Connolly-Brinker (née Connolly; September 17, 1934 – June 21, 1969), known as "Little Mo", was an American tennis player, the winner of nine major singles titles in the early 1950s. In 1953, she became the first woman to win a Grand Slam (all four major tournaments during the same calendar year). She is also the only player in history to win a title without losing a set at all four major championships. The following year, in July 1954, a horseback riding accident seriously injured her right leg and ended her competitive tennis career at age 19. Wikipedia
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