This injury is an indictment of the contract extension if that is even being discussed, because he's not even a $10 M player as a 1B. A ton of his value is his defensive ability. His bat + horrendous foot speed are not good enough to be an every day 1B. You can't run a 1B out there who hits .270/.320/.440 who can't run faster than 6 miles an hour.
They have to try to figure out if he can play catcher, because he's not good enough to start over lots of guys we could play at 1B - there's no rational case to play him over Carp, for example. He's a warm body at that point.