“The changing rooms in that stadium are very close to each other and you can hear their manager go ballistic and [Ferguson] is like: ‘Listen, you can hear them!’
“I loved it!”
United have since fallen down the order in world football after the retirement of Ferguson in 2013.
In contrast, Liverpool won the Champions League last season and are on course to win the title for the first time since 1990.
Jurgen Klopp’s side currently sit 22 points clear of Manchester City and need just four more wins to be crowned Premier League champions.
This season, United are battling for a place in the top four and Juan Mata has outlined how Bruno Fernandes and Odion Ighalo could help them.