Nuno Espirito Santo is leaning towards starting with a back four against Arsenal today after using the system for the first time in more than three years at Wolves this week.
Since Nuno arrived at Molineux in 2017, he has always used a three-man defence - until making the move to four at the back for the 1-1 draw at Southampton, because Romain Saiss and captain Conor Coady were absent as both had been self-isolating.
Nuno confirmed Coady was available again after his run of 121 consecutive games was broken, but Sportsmail understands that Nuno is minded to persist with the back four after drilling the system in training this week.