Martin Petrov says Manchester City have "no chance" of winning Sunday's derby at Old Trafford unless they buck their ideas up.

City are coming off a 3-1 defeat at the hands of Arsenal and the Bulgarian winger fears a similar fate against United.

"The class of both teams became visible in the game against Arsenal. They showed that they are the better side and beat us deservedly with better play," he said.

"If we approach the derby against Manchester United in the same way we will have no chance.

"We must play with much more ambition and much harder as this game will be even tougher than the one versus Arsenal. I think it will be great for our fans if we manage to do something against United at their stadium."

City surprised United with a 1-0 win at Eastlands earlier this season, a result that kick-started their assault on UEFA Cup qualification and which gives Petrov hope for Sunday.

Nothing like a bit of confidence is there. Never go into a game believing you will lose as then you will.

city have good team they was flying at the start. They need to get that beleif back and be confident

A Petrov inspired city finally broke their Old Trafford record of no wins in 30 years. And by doing so done the double over united this season. city certainly bucked their ideas up for this one (their league form having dipped of late) just as Petrov ordered.

Yep, showed how much his faith was mis-placed!