Robertson, Oscar, 1938–, U.S. basketball player, b. Charlotte, Tenn. Passionately devoted to basketball as a youth, Robertson led his high school team to 45 consecutive victories. After an athletically brilliant college career at the Univ. of Cincinnati, Robertson, known as the "Big O," joined the Cincinnati Royals of the National Basketball Association. Robertson, only 6 ft 4 in. (193 cm) in height, scored 26,710 points for the Royals (1960–70) and the Milwaukee Bucks (1970–72). His career total of 9,887 assists marks him as a superb playmaker.