The Nigeria international has impressed since his January arrival from Cardiff City.
Walters told The Sentinel: "Pete's a really good player, and he's got aspirations of playing in the World Cup this summer. Hopefully he can get there.
"We've got a few others going out to Brazil; Asmir Begovic, Geoff Cameron and Wilson Palacios. It's the biggest stage you can play on and it will be great for them."
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