15. Jackie Jackson
Nickname: Jumpin Jackie
High school teammates with Hall of Famers Lenny Wilkens and Connie Hawkins, "Jumpin Jackie" was one of Rucker Park's first streetball stars in the early 1960s. With his jaw-dropping leaping ability, it's no surprise that he played 20 years for the Harlem Globetrotters, even after being picked in the 1962 NBA Draft (he opted for Harlem instead). As playground legend has it, Jackson once dunked over Wilt Chamberlain and blocked one of his shots in the same Rucker Park pick-up game.