Frank Robinson hit 586 homers from 1956-76, won the AL Triple Crown with Baltimore in 1966 and became the first player to win MVP awards in both leagues, with Cincinnati in 1961 and the Orioles five years later. He became the first African-American manager with Cleveland in 1975 and also managed San Francisco, Baltimore, Montreal and Washington. As Robinson celebrates his 81st birthday on Aug. 31, 2016, we present 20 of SI's best photos of No. 20.
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