Miles Addison has been rewarded for breaking into the Derby County team with a new three-year contract.
The teenager was in the final year of his deal at Pride Park, but has now agreed to stay with the Rams until 2011.
He has started Derby's last two matches in a midfield role, having come through the ranks as a central defender.
Derby's chairman of football Adam Pearson admits Rams boss Paul Jewell has been pleased with the 19-year-old's recent progress.
"The manager is delighted with Miles and we hope he is going to go from strength to strength," Pearson told the club's official website.
"He gave a very strong performance at Barnsley on Saturday.
"His contract is incentive-based and is a reward for the progress he has made.
"He is a well-balanced and grounded young man. He is a delight to have around the place."