So basically our entire OL is injured? To some degree?

Every O'lineman on every NFL team is beat-up at this stage of the season. Will survive this too ...

Was coming here to say this exactly.

add that pretty much every player in the league is pretty much beat up this late in the season, it's especially tough on O-linemen as they typically don't get to rotate out to stay fresh during games. Injuries and fatigue build up over time.