City’s most dangerous players in Pep Guardiola’s 4-3-3 system are the two advanced central midfielders, David Silva and Kevin De Bruyne. Although both are more accustomed to higher positions, they have adjusted excellently to their new roles, driving forward and combining swiftly between the lines. Without the threat of Sergio Agüero, usually City’s obvious dangerman, Mourinho’s primary task was protecting the zone where Silva and De Bruyne operate.
Instead, Mourinho made no obvious plans. He continued with a midfield duo of Marouane Fellaini and Paul Pogba, a combination that was repeatedly exposed throughout the first half. Pogba, in particular, gave an incredibly indisciplined midfield display, positioning himself as if he were playing in a midfield trio, the system he is accustomed to. He was often caught ahead of the ball at turnovers, which left Fellaini isolated in front of the defence. The Belgian has generally been impressive this season but was inevitably incapable of shutting down both Silva and De Bruyne.
United’s problem was exacerbated by their full-backs, Antonio Valencia and Luke Shaw, being dragged out towards the touchlines as City stretched the play determinedly through the left-sided Nolito and right-sided Raheem Sterling. Therefore, huge gaps opened up in the channels, most obviously in City’s inside-left position. De Bruyne put himself between Eric Bailly, Valencia and Fellaini. No one knew who was supposed to be stopping him.