For five consecutive years, Chelsea and Liverpool were drawn against each other in the Champions League. On the way to their fluky 2005 win, Liverpool faced Chelsea in the semifinal. They advanced to Istanbul with a 1-0 aggregate victory, despite not actually scoring a goal.
Let us remember that for a goal to be given, a match official must see the whole of the ball cross the whole of the line. The assistant referee and Rafa Benitez' secretary saw it clearly, but nobody else did, because it didn't happen. Chelsea were furious, and Liverpool were full of it.
But that was only the beginning.
After a two-legged group-stage stalemate in 2006, the sides met again in the 2007 semifinal. This time it went to penalties, Chelsea crumbled and Liverpool went on to a final against AC Milan to get their comeuppance in a most amusing 2-1 defeat.
The tide turned in 2008, and in the third semifinal between the clubs, Chelsea finally emerged victorious.
They repeated the feat in the 2009 quarterfinal, despite doing their best to throw away a 3-1 first-leg lead, before the Champions League rivalry was ended by Liverpool's failure to qualify for Europe's top club competition. However, they still believe that they are a "Big Four" club.
Chelsea have enjoyed far more success than Liverpool in the 21st century, yet the Reds continue to cloak themselves in an aura of arrogance.
They sing songs about titles they won 23 years ago as if they were yesterday, and their inability to back their superiority complex up with silverware does nothing to dent their smug belief that they are still the greatest club side in the world.
When they come to Stamford Bridge and sing songs about Chelsea's lack of history, it infuriates the fans. It is quite difficult to put the phrase "we might not have much history, but we'd rather have a future" to a jaunty tune, so the only way to put it is: "Have you ever seen Gerrard win the League?"
When they have, all kinds of gloating will be welcome. Until then, they should really take their own advice and calm down.