Leeds United midfielder Lewis Cook has signed a new two-year deal.
The 18-year-old made 38 appearances for the Elland Road side this season after making his debut in the opening day defeat by Millwall.
The England Under-20 international's new contract will keep him at the club until the end of the 2016-17 season.
Chairman Massimo Cellino told the club website: "Lewis Cook deserves his new contract, he was one of the most exciting players last season.
He added: "I knew we had a wonderful talent when I first saw him in the summer. At first, I thought he was much older than he was. He plays like he has lots of experience.
"My hope is for him to stay at Leeds for a long time and continue growing with Alex Mowatt, Sam Byram, Charlie Taylor and the others. We don't want to sell."