Little Mo is a 1978 American made-for-television biographical film telling the life story of Maureen Connolly (September 17, 1934 – June 21, 1969), the 1950s American tennis player who was the first woman to win all four Grand Slam tournaments during the same calendar year, before an accident ended her tennis career at age 19. It stars Glynnis O'Connor, Michael Learned, Anne Baxter, Mark Harmon (as her husband Norman Brinker) and Leslie Nielsen.