The 15 year-old striker hit the bar, and forced a save from goalkeeper Jason Steele.
Agents have been hounding him while boot companies are queuing to sign him when he reaches 16.
So far, his Gran has scared off all enquiries!
With Manchester United and Liverpool watching, Derby boss Nigel Clough said: "There was no need for me to say anything special to him. We wanted him to play like he does on a Saturday morning. He did that."