The striker was on the mark in their Capital One Cup win at Morecambe.
Pardew said: "He's actually looked the best I have seen him in this pre-season. I think the Nigeria selection has actually given him a boost, I can see that in his eyes.
"He is looking forward to the international coming up and I think that's benefited us.
"Sometimes we moan about that; this time it's been a bit of a lift for him and his confidence and everything. He was terrific in the second half."
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