Boro youngster Harry Chapman has joined League One side Sheffield United on a season-long loan. 

The 18-year-old was the leading assist maker in the 2015-16 UEFA Youth League, as Boro reached the quarter finals of the competition. 

Chapman also spent time on loan at Barnsley last season, where he helped The Tykes win the Football League Trophy, and promotion to the Championship via the League One play-offs.