William Felton Russell (born February 12, 1934) is an American former professional basketball player who played center for the Boston Celtics of the National Basketball Association (NBA) from 1956 to 1969. A five-time NBA Most Valuable Player and a 12-time All-Star, he was the centerpiece of the Celtics dynasty that won eleven NBA championships during his 13-year career. Russell was equally notable for his rebounding abilities. He led the NBA in rebounds four times, had a dozen consecutive seasons of 1,000 or more rebounds, and remains second all-time in both total rebounds and rebounds per game. He is one of just two NBA players (the other being prominent rival Wilt Chamberlain) to have grabbed more than 50 rebounds in a game.