Josh Sitton Packing on the Pounds

I know we're talking about football players here, but come one! Green Bay Packers guard Josh Sitton is walking a fine line between adding on muscle versus just adding on. At 6'3", he's already packed 317 pounds on his frame (though I think it looks like even more). He's also bulked up over the Green Bay Packers' season and looks a little heavier at each game. At what point is it more of a hindrance than a help?