Born February 23, 1945 Mal Graham played in the NBA mainly as a Guard during their playing career, season(s): 1968-1969. Robert Malcolm Graham is an American former professional basketball player. He played two seasons in the National Basketball Association. A 6'1" guard from New York University, Graham won two NBA championships as a member of the Boston Celtics from 1967 to 1969. He scored 327 points in his career.