Some are so obsessed with selling, I bet they'd sell the player's half for 2 millions or less. I don't think we should keep him against his will, but I think it's in the management's best interest to make him feel important and still part of the project if there are still chances they'll be left with him (if not, he'll become an Almiron, and now you could say goodbye to the money invested).
The player suffered from muscle fatigue related to his injuries, this season would be make or break; think we'd be smart to take the chance (anyway, we should because his value decreased, it's a point of no return), stick with him all the way; and see chances of him succeeding increase. The management bought him injured, they should not knee jerk their way out, otherwise they shouldn't have bought him at all.