The Ghana winger scored as Newcastle defeated Wigan 2-0 to go top of the English Championship
Mo Diame started the scoring for the Toons in the 26th minute after receiving a ball from Isaac Hayden.
Before Christian made victory certain for Rafael Benitez's side with the second in the 78th minute after coming on in the second half. The Chelsea loanee found himself in acres of space in front of goal, and after teeing himself up with his right, he hammered home with his left.
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The victory has sent Newcastle to the top of the Championship table.