Raheem Sterling's seventh-minute goal looked set to be paving the way for another dominant display from the Premier League champions, who thrashed Atalanta 5-1 in the reverse fixture and wanted a win to guarantee its place in the last 16.

However, Gabriel Jesus' dreadful penalty miss and the half-time substitution of goalkeeper Ederson – who reportedly had a minor injury – handed Atalanta hope, with Mario Pasalic then heading in their equaliser.

A red card for Ederson's replacement, Claudio Bravo, caused mayhem in the closing stages, with Walker, after a long delay, brought on to take his place in net, and the emergency goalkeeper held his nerve as City held firm to claim a point.