Chris Olave is expected to play vs. Rams (update: Miller may be available, Ramczyk Out)

If Ram has had a "lingering knee injury in recent years" why hasn't he had surgery in the Offseason to clean it up over the past few years so it would not continue to linger?
His condition is degenerative. It can't be fixed, or at least that's what Nick U. said. Who knows if he even makes it another season.