That video was definitely from a different angle then the one I saw last night. I also read a few articles where it said he was laughing directly after and in the cart. From the video clip linked in this thread, it does not appear that he is laughing, but hurting.
Also LOL at the KC staff initially trying to put him in a freaking mower trailer but no one could figure out how to get it open. The Yankees continue to take BP and rain balls down on the best closer in the games history as they are summonsing a better cart.