Certainly a release clause would, perhaps, make the amount required clear for all parties. However given that Mahrez is currently in breach of his contract there needs to be a date agreed, before which he comes back to the club, and performs the duties he agreed to in his contract of last year. Should he not do this then I really feel that he needs to be warmed that the club can keep his registration and not transfer him until the end of his contract. Of course that has financial implications for the owners but it has massive implications for his future as well. Even if he does return to train and play there is no guarantee that he is going to give 100 per cent and might well not do this?