Leslie Sackey signed his first professional contract with the club in May 2017 after graduating from the Iron's academy following a two-year scholarship.
After being offered the deal at the start of April, Sackey put pen-to-paper in May, signing a one-year deal with an option of a further 12-months in the club’s favour.
The 18-year-old joined United’s academy from Reading two years ago. He is 6ft tall and also capable of playing as a striker.
Sackey travelled with the first team squad for the League One game against Millwall at the beginning of the month and has put in a number of excellent performances for the under-18 side over the past couple of campaigns.