The Teessiders recorded an impressive 1-0 win over Bristol City on Tuesday night after George Saville scored the only goal of the match.
Yet Warnock is likely to alter his team’s formation and play with a back four in South Wales, where Patrick Roberts will drop to the bench.
Scroll down and flick through our picture gallery to see the side which will start for Boro today:
1. GK: Marcus Bettinelli
Has kept back-to-back clean sheets and is a commanding presence between the sticks. Photo: Alex Pantling
2. RB: Anfernee Dijksteel
Continues to impress in defence, whether he's playing in a back three or at right-back. Photo: Richard Heathcote
3. CB: Paddy McNair
Has the attributes to perform well at centre-back while his deliveries from set-pieces and open play are always a threat. Photo: Getty Images
4. CB: Dael Fry
Is starting to look back to his best after a tricky few months. Was excellent at Bristol City. Photo: Alex Davidson