Manchester City boss Pep Guardiola insists a form slump could hit them this season.

City went five points clear of rivals Manchester United with a game in hand following Sunday's 4-1 victory at Anfield, but Guardiola warned against complacency by pointing towards Liverpool's recent collapse in form.

"We shouldn't play any more games in the Premier League because we are already champions," Guardiola said sarcastically.

"I don't have to understand why we have to play against Tottenham and then Everton.

"I don't understand it because we are already champions.

"All the good words are just because we are winning games - we are the same team that we were. Two months ago we were out of everything: we didn't have any chance to be champions.

"Liverpool remains one of the best teams I've seen in my life and were able to make an incredible run at home unbeaten - destroying teams for two or three seasons without one defeat.

"Then immediately, you don't know why, three defeats in a row. Do you think it cannot happen with us? Of course it can happen."