A day after their demoralizing 100-99 overtime loss Friday night to the Chicago Bulls, the Celtics were still lamenting the game’s critical play.

With the Celtics ahead by 2 points and 12.1 seconds left in regulation, Rajon Rondo inbounded the ball to Paul Pierce, who gyrated with the ball as Joakim Noah and Jimmy Butler of Chicago converged on him. Butler tried to tie up Pierce from behind, and Pierce brought the ball in front of him, only to have officials rule that Noah tied him up from the front.