Man City is playing a very midfield oriented 4-3-3 – more like 2-7-1 or 3-6-1 in practice. Mendy and Danilo are playing very high upfield, the midfield is Fernandinho, De Bruyne and David Silva, with one of them (usually Fernandinho, but often De Bruyne) dropping in between the 2 centre-backs. Bernardo Silva and Sterling both come infield to leave space for the full-backs, and they don't stay very far forward, so they are more midfielders than strikers. Typical Guardiola – lots of numbers in midfield, exposed back line, isolated striker.