Sacking the player will require us to pay the reminder of his contract which is a non starter. However there are ways to go around that. For example its within the club's rights to push the players into treatments or surgeries meant not to put his career in place but simply to squeeze as much game time out of the player as possible. That can scare a player into an early retirement or some sort of settlement. Players tend not to want to spend 2 years in the surgery room with the risk of ending crippled for life just because of some contract. If I remember well that's the reason why Van Basten called it a day when he did.
Some people might perceive that as cruel. However I'd invite people to see the bigger picture and analyze the damage of having a 150k a week player on our payroll while contributing to next to nothing. I mean if you take all our LB's salaries (Dorgu on 40k, Malacia on75k and Amass around 10k) they don't make Shaw's salary COMBINED. That means the moment Dorgu or Amass start playing well then they'll come knocking at the manager's door demanding to be paid at least as much as the one whose never available. At a time of FFP, PSR and the club losing money that's a huge problem that must be sorted.