So basically just take him off the wage bill for the sake of the La Liga cap on the wage bill, but we are still paying his wages. The players enjoy a nice long vacation while getting paid (not that they want it, considering their career is at stake). Sigh.
That is the worst case scenario here.
It needs :
A-Judge to decide we will have to pay them. (most likely happening)
B-The player forced to stay free agent as no club interested.
In case of Fernandes, it will be difficult for him if we indeed had offers for him from Brazil. It is a prove that the player decided to sabotage the club to get paid without work. You can't just choose to stop working with no reason in order to get the club to pay you.
If he moves to Brazil, with a comparable wage to what he has there before joining us, we only got to pay the difference.
As for Umtiti, it can be more tricky, as he might not have anywhere offers near what he gets paid, but if he has (or the club can prove there were offers) then again, we will only be responsible for whatever the difference between what we should pay and what he is getting paid.
Overall, this is like "loan while paying part of wage" except we give them no choice to stay.