What is unbelievable about the Celtics running out of energy at the end of the 4th quarter and in overtime? They are an old team, and their only young star player was seriously injured. They fought their hardest all game long to stay in it, playing crazy defense. It takes a ton of energy to defend the Heat like that all game, though, even for a young team. At the end of the game, the Celtics just didn't have any energy left.
I'm not blaming anybody for this loss. The Celtics played as well as I could have hoped; the Heat just played better (basically just their Big 3, but that was enough).