Ben Liddle is the latest young player to commit his future to the club by signing a new contract.
The 21-year-old, who joined Scunthorpe United on loan last week, has signed a two-and-a-half-year deal with the option of a further year.
He is the fourth young player to put pen to paper since the end of December with Hayden Coulson, Marcus Tavernier, and Djed Spence already signed up on longer-term deals.
Ben is another Academy graduate who has been rewarded for his development this year. He made his first team debut at Leeds in November, his full debut came away to Tottenham Hotspur in the FA Cup last month.
Head Coach Jonathan Woodgate said: “It’s great to get another of our young players signed up for the future. After coming back for pre-season, Ben knew he had a lot of work to do, and he’s really knuckled down and done very well.
“He earned himself the right to be involved with the first team, and did well when he came on at Leeds and against Tottenham.
“The loan move will give him the opportunity to continue his development now by playing regular, competitive football, and he will come back here next summer benefiting from the experience.”
Ben made his debut for the Iron last weekend.