48 on game day and really only 45 if you don't count the K, P, and long snapper. It makes it really hard to really pull a significant number of guys. If it's out of reach you can usually pull some skill guys but you don't have enough players to do much more. And, as you know, most NFL games don't get out of reach at the end. Even the Tampa game was competitive right up until they blew it open later in the game.