Manchester City striker Sergio Aguero insists Manchester United remains the club's biggest rivals, despite admitting that Liverpool are their main title challengers.

The defending champions travel to Anfield on Sunday looking to close the gap on Jurgen Klopp's side, who currently hold a six-point lead at the top of the Premier League table.

“It may be the clasico for television, but for us, the clasico, it's the match against United," the Argentina international told France Football.

"Liverpool has always been a tough opponent. But when I arrived, the team we were fighting for the title was United.

"Initially, it was something strange in the city that City competes against United. Then there was Chelsea."