Former Reds forward believes that the performance at Craven Cottage on Monday was the club’s best for two years, and claims it was a statement from Kenny Dalglish's men
That victory came during the reign of Rafael Benitez, and the recent appointment of Kenny Dalglish as a successor to Roy Hodgson - who replaced the Spaniard - has seen the club challenge for a Europa League place.
And Aldridge has now voiced his appreciation towards the Scot, assistant boss Sammy Lee and first-team coach Steve Clarke.
"Monday's 5-2 win over Fulham was, in my opinion, the best performance Liverpool have produced since they beat Manchester United 4-1 in April 2009," he wrote in a column for the Liverpool Echo.
"The manner in which the Reds went about their business at Craven Cottage simply shows the confidence and the belief that is coursing through this side at the moment.
"Kenny, Steve Clarke and Sammy Lee have got the side playing with a real purpose and attacking intent, and they truly can’t be praised enough for the work they have done at the club. The team looks completely different from the one which stuttered so badly at the beginning of the season.
"Right from the first whistle on Monday, the confidence was bubbling throughout the side, and in truth the game was over inside of 20 minutes."
Aldridge added: "That is a great statement from the club, and from the players, and will make the rest of the league sit up and take notice - if they weren’t already."