Barkley insists their 4-3 defeat at home to Arsenal can act as inspiration against City.
“We caused them problems, we're a danger to anyone. No team in the league has scored three goals in the league against Arsenal this season, so you have to look at it in a positive way. We've got a great team spirit and we show character on game day.
"We were getting beat 1-0, came back then getting beat 2-1 and we've gone ahead. We were unfortunate to concede in the last minute as if they didn't score that, we'd probably say that we were the better side. They weren't really causing us any problems, except for a few little moments of magic which they're going to have because they're a quality side with top players.
“But Arsenal beat City. Arsenal are a top side. City are a top side. They've won the league numerous times over the last few years, and the Champions League last year as well. We don't need to have any respect when it comes to game day. We'll go into the game fearless."