How do you figure that he's overweight? You do realize that Defensive Tackles are SUPPOSED to put on weight and have something of a gut, right? Particularly if they they are going to line up as a Nose Tackle.
You can't really say he's "out of shape" from there, either. He's been with the team all along, no? He's probably just not in "football shape," and how could he be unless he's playing football?