Should Sanchez's move to the Parc des Princes be completed, PSG could end up spending around £440 million on three players.
"Do you really think that you sit in the dressing room before the game and you think "Oh, I have only one year to go - I will not play well today"?"
'It's not like they are going to sell him for £50m and take £200 of everybody's season tickets because we've sold our best player.
As it stands, if he refuses to sign the new deal which will be offered - he will be running out his contract, which would allow him to leave for free next summer.More news: Tony Pulis signs two-year contract extension with West Brom
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However, the Frenchman insists Sanchez remains "focused" on playing for the Gunners this season amid continued speculation about his future.
He is now appealing against a two-month prison sentence for assaulting a police officer past year and, because of that conviction, was banned from entering the United Kingdom for PSG's Champions League fixture against Arsenal last season.
Gary Neville added: "I spoke to Danny Simpson and he said decisions like that always happens here". I just think we are not open - what I said to you many times - to any offers, anyway.
But he is no closer to shifting those deemed surplus to requirements as he believes many Premier League clubs are in the same position.
The final player who could miss out on Friday is Mesut Ozil as Wenger has confirmed the German playmaker is still feeling the effects of an ankle injury that kept him out of the Chelsea game at the weekend.