Warnock has named a handful of players who will feature in the second-round tie, while new Boro signing Sam Morsy is set to make his debut after arriving from Wigan.
Our Boro writer Joe Nicholson has picked the side he thinks will start against the Tykes – scroll down and flick though our picture gallery to see if you agree:
5. CB: George Friend
Looked rusty against Luton after making his first-team comeback. His return will be a boost though. Photo: Tony Marshall
6. LWB: Hayden Coulson
The only Boro player who came away with credit against Luton. Provides energy and pace on the left. Photo: Alex Davidson
7. CM: Paddy McNair
Disappointing against Luton after returning to his natural central midfield role. Was Boro's best player in that position at the start of the season. Photo: Mike Hewitt
8. CM: Lewis Wing
Scored two goals against Wigan last week, taking his tally to six this season. Photo: Getty Images