I'll be honest, I think if he wants to go then this window is the summer we need to move him on. He's not happy here but no one else is prepared to pay what we think he's worth. I'd be trying to get a Saudi club to come in with an offer but I don't think that's likely as they'd surely have done it by now.
I think if he wants to go to PSG or Barcelona, the only thing we can do is a swap.
The worst outcome for us is that he stays and has his eye on leaving on a free. I'd rather get £50m for him than nothing.