Young defender Jack Robinson has signed a new two-year contract with the club.
The 19-year-old is rewarded after a season that ended when he made his first team debut as a late substitute in the final day clash with Wycombe Wanderers.
The former Nunthorpe Athletic youngster joined the club as 13-year-old and has progressed through the ranks since joining on a scholarship during the summer of 2017.
The 2018/19 campaign saw Jack make 25 appearances across three competitions, the Checkatrade (Football League) Trophy (2), the Under-23s (4) and the Under-18s (19).
The young Teessider has since established himself as a regular in our U23s and was rewarded with a place on the subs bench for the first team trip to Rotherham in April.
His debut followed two-and-a-half weeks later at the Riverside.