Puncheon was forced off due to injury during the victory over QPR.
Pardew told the Croydon Advertiser: "Puncheon, who I think, has been most influential player since I've arrived, gives us a culture on the ball that we didn't have.
"He was a big loss I thought in that last period. He got a knee in the hamstring which means it's a bruising and just a blood situation which I think will be ok, he will probably miss one game.
"His quality for us is exceptional. He's the only sort of player in the group, which worries me that I need to address in the summer; that has the culture to find a pass.
"His set play delivery today, sometimes it goes under value, putting the ball on the money."
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