Manchester City manager Manuel Pellegrini has labelled this weekend's clash with Manchester United at the Etihad as a 'must win' game for his side.
It will be the Chilean's first experience of a Manchester derby and with both teams tied on seven points after four matches Pellegrini highlighted the importance of taking three points from the game.
Both sides have had mixed starts to the season with City losing away to newly-promoted Cardiff City in their second league match.
“It’s a match of six points. It’s very important to win it," said Pellegrini.
"Playing at home against Manchester United, we must win. It’s more important to win than not to lose.”
Manchester United's new manager David Moyes had a good record against the Sky Blues when in charge at Everton but will face a new challenge at the weekend as it will also be his first experience of a Manchester derby.
Having already seen his side lose to Liverpool at the beginning of the month Moyes will be keen to claim a win against neighbours City.
But 60-year-old Pellegrini believes that the pressure on Moyes may help rather than hinder the Scot.
“It is impossible not to be under pressure when replacing Sir Alex Ferguson,” he added.
“Managing Manchester United, or any big team, you are always under pressure but that is a good way to work because you know what you have to do.
“He [Moyes] had good results against Manchester City when he managed Everton, but I had a good record against Everton when he was manager there.”
Pellegrini's Valencia overcame Moyes' Everton in a Champions League qualifier in 2005, the only time the two managers have faced each other before.