May 2002. Aided by Danny Murphy's second successive winning goal at Old Trafford the previous January (pictured above), Liverpool finished above Manchester United in the table for the first time in 11 years.
In coming runners-up to Arsenal, the Reds secured their first top-two finish for 11 years as well, whilst they also ended an 11-year streak in which United had constantly finished either first or second.
Fast forward to 2014, and a win at Old Trafford on Sunday will place Liverpool 14 points ahead of United with nine games remaining, and so it would be fairly safe to assume that they were going to finish above their rivals for the first time in 12 years.
So just what has happened in football since the last time the Merseysiders finished ahead of the Mancunians?
Here we take a look at 20 of the biggest changes in the game: