The Brazilian kept a clean sheet in the Champions League match as, according to 'The Sun', the 'Citizens' watched on.
Alex Sandro, 27, is expected to move away from Turin if Juventus bring in Real Madrid left-back Marcelo, who has expressed his desire to link-up with Cristiano Ronaldo once again.
The 'Old Lady' value Alex Sandro at around £50m, and Pep Guardiola's side could enter into a bidding war in January for the player, with Manchester United and Chelsea also linked with a move.
He is contracted at Juventus until 2020 and would have to contend with City's Benjamin Mendy for a place in the starting lineup.