Those first two words mean a lot. If he ends up being done for the year, it will be four years in a row he has played less than 50 games. And 3 of those years he played in 31 or less games.
So regardless of cost, you have to be asking yourself how much do you want to spend against a stricter cap to keep a guy that hasn't shown he can stay healthy.
I don't want to discuss amounts. But his injuries are a legitimate concern now if they weren't already.
If injuries weren't a concern we'd be talking about an All-Star and contract numbers in the 12M+ range. His injury history brings that number down substantially, but it certainly doesn't mean we should ditch our only reliable veteran, and our only above-average frontcourt player.