Nacer Barazite has extended his loan at Derby County after signing a new long-term contract at Arsenal.
Dutch forward Barazite has been on loan at Derby since August and has made 19 appearances in the Championship, starting 12 times.
He has now agreed a deal to stay with the Rams for the rest of the season, with caretaker boss Chris Hutchings hoping the teenager will continue to progress.
Hutchings said: "Nacer is a fantastic talent, with lots still to learn of course, and he's applied himself well since he's been here."
In confirming the extension, Arsenal also revealed that the 18-year-old had agreed a new deal at Emirates Stadium.
Barazite has made two substitute appearances in the Carling Cup for the Gunners since joining from NEC Nijmegen 18 months ago.