"Ajax is a club of legends and has always had one of the best youth systems in the world," he said on Tuesday. "I have a massive amount of respect for Ajax. Obviously tomorrow is a game we need to win as much as they need to win.
"I think it's a very tough group. There are not gonna be any easy games, tomorrow is gonna be [a difficult] one again. It's very tight, but that makes it exciting.
"We're a very disciplined team and we have shown we have a great capacity to react, and tomorrow is a different game, a different setup and it's just important to win."
City are currently third in their group with just one point from their opening two matches.