Celtics coach Doc Rivers succumbed to his emotions in the final seconds of Boston's loss to the Miami Heat in Game 7 of the Eastern Conference Finals as he subbed out Kevin Garnett, Paul Pierce and Ray. Allen Perhaps he suspected that this may have been the last stand for the Boston Celtics' Big 3.With 28.3 seconds left in the game and the Heat leading 99-88, Rivers appeared to tear up after getting a hug from Garnett.