Tom Thibodeau knows what the Celtics can do when the game goes into overtime: He was Doc Rivers' assistant when they played six OTs in a three-game span against Chicago in the 2009 playoffs. "I know they have a lot of weapons, they're experienced, they know how to work the game and they're hard to guard," the Bulls' rookie head coach said Friday night. "I think the thing that often gets overlooked with them is not only their individual greatness but their collective greatness and their willingness to share with each other." Kevin Garnett chased down Joakim Noah and tipped the ball away from behind with 14 seconds left in overtime, and the Celtics held on to beat Chicago 110-105. It was the second consecutive overtime game for the Celtics, the first back-to-back OT games since they played three straight against the Bulls in the first round of the 2009 playoffs. Read more: http://scores.espn.go.com/nba/recap?gameId=301105002