Sergio Aguero believes European champions Liverpool are the only team who can hurt Manchester City this season.
But the Argentina international is adamant beating Manchester United matters more to Pep Guardiola's side.
Liverpool entertain City on Sunday hoping to extend their six-point lead at the top of the Premier League table.
The pair have developed an intense rivalry over recent seasons with the Etihad side pipping the Reds to the championship last season by a single point.
And while Aguero acknowledges the threat of Jurgen Klopp's men, he doesn't regard the fixture as being the biggest in City's calendar.
“It may be the clasico for television, but for us, the clasico, it’s the match against United," he said, speaking to France Football via Sports Witness.
"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.
"But these last four seasons, Liverpool have become a very strong team and are now fighting with us to win the Premier League.
"It’s the only team in the league that can hurt us. They have been chasing a new league (title) for years.
"Last season, they didn’t go all the way, so they are very motivated. This year, they are in front of us and will try to go to the end.”
City haven't won at Anfield since 2003 and know defeat at the weekend will represent a major blow in their attempts to secure a third successive league title.
“We know that this is a ground where it’s very difficult to win, but we’ll try to do it because it has been a long time since the club last won there," added Aguero. "This will be a key match for the title.”
