The Sierra Leone-born forward, on loan from Sporting Kansas City, rose above the pack to fire home a wonderful header as the Canaries came from behind to beat Everton 2-1 on Saturday for his first Premier League goal and he now believes that Sir Alex Ferguson may look to mark him at Old Trafford on March 2.
"We played Man United on their pre-season tour in 2010. We were Kansas City Wizards back then and we are the only team in America that's ever beaten them," he said.
"I scored a headed goal and got an assist in a 2-1 win. So I may be a marked man against them now!
"But I'm used to being man-marked in America and it just means I have to work much harder because you have to do different tricks to get past people and I really enjoy that."