Manning definitely stands up impressively to punishment. I don't remember what game it was, but he took a hit last year where it looked like he was going to be snapped in half, and the commentators were pretty much prepping viewers for the fact that he may not be getting up from that one, and he just stood up and staggered off, and was back in the game shortly. Anyone else remember more specifics on this? If you saw the hit, you'll know which one I was talking about, it was pretty nasty.
Also, he got bodyslammed pretty hard by Kris Jenkins the week before they played the Pats, and, while dazed, he managed to get up and stay in the game. People talk about how lucky Brady and Manning are to have had such injury-free careers, but, when you see them take some of the shots that they take and get back up, you realize that it's just because they're both tough as hell.