Have you ever seen this before?
Seems like something out of a movie. But if this was a movie, the game would probably be a playoff game or somekind of game that determined whether or not the heroes made it to the playoffs (it's never the actual championship game...why?).
If this had been a scene in a movie and the hero was the batter (Youkilis) the ball would of course fallen outside the fence for a homerun.
Or if the hero had been the fielder (Damon) he would have rolled, after hitting the ground, toward the fence and made the catch for the final out.