The Teessiders are two points above the relegation zone following their win at The Den, when Warnock changed his formation to play with wing-backs. Our Boro writer Joe Nicholson has picked the side he would play this weekend – scroll down and flick through our picture gallery to see if you agree:
1. GK: Dejan Stojanovic
Made an outstanding save at Millwall when the game was still goalless, similar to the crucial stops he produced at Stoke. Photo: JPI Media
2. RWB: Djed Spence
Was a constant threat in the first half at Millwall and kept his cool after receiving an elbow to the face. Will play with a face mask after breaking his nose at The Den. Photo: Justin Setterfield
3. CB: George Friend
Looked more assured in a back three at Millwall as Boro's defence stood up to the physical challenge. Photo: Tony Marshall
4. CB: Ryan Shotton
Produced a man of the match display at Millwall after returning to the starting XI. His presence was just what Boro needed. Photo: Getty Images