The Magpies would give their top-flight survival campaign a major boost if they could win at White Hart Lane and complete a double over Spurs and Keegan expects Butt to play a key role for his side once again.
He said: "He has been vitally important, and the one player who stitches it all together. He just gets on with it. Michael (Owen) captains the side, but I see him as another captain out there."
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