Ilkay Gundogan has said that Manchester City still haven't found top gear this season despite a strong second-half display against Porto.
Gundogan scored a sublime free-kick in City's 3-1 Group C victory in the Champions League on Wednesday night.
City did, however, go behind through Luis Diaz's goal in the first half which exposed frailties in Pep Guardiola's defence.
And while City have won two of their opening four Premier League games, Gundogan believes they are still some way off their best.
He said: 'If I'm being honest we are struggling at the moment.