Paul Scholes believes Liverpool are Manchester United's greatest rivals, not Manchester City.
Liverpool are level on points with Premier League leaders City as they hunt their first top-flight title since 1990, and their next domestic game is a trip to bitter rivals United on Super Sunday, live on Sky Sports.
Sir Alex Ferguson helped United topple Liverpool to become England's most successful club by winning 13 Premier League titles in his 26 years at Old Trafford, leapfrogging their 18 titles to reach a tally of 20.
City have battled United for the title on various occasions in recent years, but Scholes feels that due to Liverpool's proximity to United's record it remains the most anticipated fixture in their calendar.
"I think it's the biggest rivalry in English football," Scholes said.
"In a few years, if Man City carry on the way they are going, that [rivalry] might overtake it a little bit.
"You'd expect two Manchester teams to have the biggest rivalry, but I don't think it is, I think it's the Liverpool-Man Utd thing, especially with Liverpool trying to get to United's record of league titles. We don't want them to do that.
"United vs Liverpool is a big, big game and Liverpool are going really well, so are United. They had a bit of a disappointment against PSG, but hopefully they can redeem themselves tonight [against Chelsea].
"And hopefully they'll beat Liverpool on Sunday."