2. Gundogan class for City in debut
It was the opportunity to seal an ideal introduction. Fernandinho launched a lightning counter-attack. Kevin De Bruyne and then Aguero supplied square passes. And there was Ilkay Gundogan, unmarked 12 yards out from goal and able to open his Manchester City account after 12 minutes, only for Sommer to save his tentative shot. Yet while the chance was gone, he nonetheless contributed to a goal; Gundogan was tripped by his Germany teammate Christoph Kramer, securing the penalty converted by Aguero.
Gundogan had scored from 12 yards in a Champions League final himself -- for Borussia Dortmund in 2013 -- but while he completed his debut without returning to the scoresheet, City could still savour the sight of him in action. Gundogan was promoted for an eagerly-anticipated bow as Monchengladbach were spared a meeting with David Silva, who had been named in Tuesday's team but was omitted as a precaution. The German's debut had been delayed by a knee injury, but it was a sign of his significance to Guardiola that he was signed while sidelined and that he was the Catalan's first buy.