Boro fielded a strong side in the PL2 to pick up an away win against West Bromwich Albion on Monday.
Rudy Gestede, making his first appearance since sustaining an ankle injury in pre-season, was joined in the starting line-up for our Under-23s by loan man Sam McQueen on his first outing in Boro colours.
Ashley Fletcher was involved too, and it was his blocked effort that led to Sam Stubbs opening the scoring for Boro in the early stages.
Callum Morton equalised for The Baggies from long range before Fletcher restored out lead with a deflected shot in the second half.
Marcus Tavernier extended Boro's lead, connecting well with a McQueen cross, and though Nathan Ferguson pulled one back for the hosts, Paul Stephenson's side held on to secure victory.
Elsewhere at the weekend, Boro's Under-18s were beaten by a late goal at Derby County.
Pegged back twice in the opening ten minutes, Boro looked to have salvaged a draw thanks to goals from Gabby McGill and substitute Layton Watts.
But The Rams' Jason Knight had the final say with a late winner for the home side.
Watch goals and highlights from both games in the video player above.