Manchester United managerial Sir Alex Ferguson says Liverpool fans weren't the most intimidating during his time in charge.
Instead, Ferguson says trips to Leeds United and West Ham United were more concerning.
“You don't really pay attention to that, your focus is on the game," Ferguson told A Team Talk with Legends when asked if there were any fans who 'worried' him.
"I remember arriving at one or two grounds when there was a bit of hassle, but nothing really serious.
"The grounds at West Ham and Leeds United were difficult, the fans were very vocal against us when we arrived, but during the game, the focus was too much on the actual game."