 Carr was instrumental in leading the Celtics' defense past the favored Philadelphia 76ers in the 1981 Eastern Conference Finals, on the way to Boston's 14th NBA championship.Playing for the Celtics until 1985, Carr averaged 9.7 points and 4.3 rebounds per game during his NBA career.He is best known for the steal and dunk he made in overtime of Game 4 of the 1984 NBA Finals versus the Lakers in Los Angeles, which sealed the victory for Boston, and eventually won another title for them.