The highly rated 19-year-old joined Sporting on loan from Chelsea earlier in the summer with regular first team football under Xabi Alonso hard to come by.
Derry came off the bench in the second half of Sporting’s home pre-season friendly against Monaco but didn’t take long to affect the game.
He received the ball after some sloppy defending from the Ligue 1 side setting himself and finding the far, bottom corner with a fantastic looping strike.
Derry then paid homage to Chelsea teammate Cole Palmer by doing his famous ‘cold’ celebration.
Speaking after the game, Derry said: "I couldn't have dreamed of a better debut.
“This stadium is spectacular, the fans make themselves heard throughout the entire game. This gives me a lot of motivation to keep working to score more goals in front of these fans."
