After a goalless draw with the Red Devils, which went to extra-time, Boro claimed a memorable 3-1 win in the subsequent penalty shootout in front of 10,000 jubilant away supporters. Scroll down and flick through our picture gallery to see the side which played:
1. GK: Tomas Mejias
Back at Boro after a spell at Omonia Nicosia in Cyprus. Now the club's third-choice goalkeeper behind Darren Randolph and Aynsley Pears. Photo: NIGEL RODDIS
2. RB: Tomas Kalas
After loan spells at Boro and Fulham, the Czech defender finally made a permanent switch from Chelsea to Championship side Bristol City. A hamstring injury has kept him out since August though. Photo: Shaun Botterill
3. CB: Daniel Ayala
Still a key member of the Boro squad and has captained the side for most of the season. Will be out of contract in the summer though. Photo: NIGEL RODDIS
4. CB: Ben Gibson
Injuries have been a factor but the Boro-born centre-back has hardly played for Burnley since moving to Turf Moor last year. Photo: Shaun Botterill