Jason Collins
Position: Center (7-0, 255)
New to the Celtics, Collins was an All-American at Stanford University. Has a twin brother, Jarron, who last played for the Portland Trail Blazers during the 2010-2011 season. Backup center. Ended up starting for Atlanta after Al Horford and Zaza Pachulia were injured. Classic fundamentally sound, pick-and-roll, post player.