Liverpool legend Graeme Souness says a Manchester United win over Liverpool would be the biggest Premier League upset in six years.
Jurgen Klopp's men head to Old Trafford having won every game this season.
"If Manchester United beat Liverpool at Old Trafford today, it will be the biggest upset in top-flight football since Manchester City lost to Wigan in the 2013 FA Cup final," Souness wrote in the Sunday Times.
"I'm not saying that for the effect, I'm not saying it because I'm an ex-Liverpool player.
"I'm saying that because that's what all the relevant indicators signify: the strength on paper of the respective squads; the fitness of key players (Paul Pogba out for United and maybe David de Gea too); the fact that Jurgen Klopp knows his best starting XI and Ole Gunnar Solskjaer clearly doesn't; and recent form eight league wins out of eight for Liverpool, just one win from their past seven for their opponents."
