Abdul Samed, a Ghanaian international and Sunderland midfielder, played for 20 minutes to assist his team in securing three vital points.
Middlesbrough took the lead with a composed finish from Bourzourg that sent the home crowd wild, but Sunderland tied it up through Wilson Isidor. Sunderland made it 2-1 as Isidor got his second goal of the match.
The home team again cancelled it to 2-2 before Sunderland sealing the win with an on goal from Girles. The introduction of the Ghanaian solidified the defence as Samed covered the back effectively before Sunderland’s crucial win to make it 2-3.
Sunderland is currently 4th on the table with 58 points after 30 games.