Unless the player has set his heart on staying in London. If he sets his face against every other offer, then Arsenal have to choose between selling to a rival or letting a pissed off player leave on a free the following season. They have history with Van Persie.
This.
It, in all likelihood, won't happen, because I dont think Sanchez has great ties to London, by all accounts I was under the impression he wasn't all that keen on England.
But if he did want to stay, he could just say " I want to go to Chelsea/City and nowhere else".
What are Arsenal going to do?
Take the £50 or £60 odd million they could get for him whilst under contract, or let him stay at Arsenal for one more year and leave for **** all?
Can you see that penny pinching Arsenal board throwing away that much money? I certainly cant.
Think he will head to PSG though myself.
We let them sign the most successful and legendary goalkeeper in our clubs history, because he wanted to stay in London, anyway, so they owe us one
Still, don't think Sanchez is that bothered about staying in England, if he can go to Sunnier climes and earn an extra 100k a week.