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Dias is already looking for a strong response from the players after the loss.
"The thing in my mind is the next game already," he said. "But also the way the team went into half-time with one player less. The way we came back. We got on top of them. That's the spirit we need. That's the biggest positive from today. We showed lots of character to keep fighting until the end.
"In this life you always need to bounce back and to turn it around. There's always a chance to turn it around. Today I felt something that I feel will be very important going forward.
"It's an important week, like any other, and we're looking forward and we will be there."
City are back in action at the Etihad in midweek, hosting Club Brugge in round four of the group stages of the UEFA Champions League.
Watch the entire interview with Dias via the video at the top of the page.