The 27-year-old France international has been conspicuous by his absence in the Magpies' opening two games of the Barclays Premier League season amid reports that he refused to play against either Manchester City or West Ham after Arsenal formalised their interest in him.
The Gunners are yet to come anywhere near Newcastle's valuation of a player they snapped up from Lille for just B£4.3million during the summer of 2011, but Pardew, who is already desperate to see director of football Joe Kinnear land reinforcements, is in no mood to be caught out as he was when Andy Carroll departed for Liverpool on the final day of the January window the same year.
Pardew told the Chronicle: "You can't say he is definitely going to stay, so the mindset of the player is such that we need to be on guard.
"We are on the case with that. We have to be armed. We need to resolve it.
"If he goes, good luck to him. Bye, bye. We need to replace him with somebody as good."