Liverpool take on Chelsea on Sunday in a game with big connotations at the top of the Premier League.
The Reds know that a win would put them tantalisingly close to a first league title since 1989.
And the visiting Blues know they can blow the whole wide open with three points on Merseyside.
The pair have been involved in some tasty clashes through the years which have fostered one of the great rivalries in recent times.
Here’s five things which have stoked the fires down the years.