WWE's road to WrestleMania is in full swing, and a now annual part of the path is the traditional Elimination Chamber Premium Live Event.
The final big stop before WWE's grandest stage is usually the last chance saloon for superstars to book their place in a title match at WrestleMania, but how does the match actually work?
Here's DAZN News' guide to one of WWE's most favoured gimmick matches.
The Chamber is said to be the brainchild of current WWE Chief Content Officer Triple H, and was introduced on screen by RAW General Manager Eric Bischoff ahead of the 2002 Survivor Series.
The concept is said to be a mix of a standard steel cage match, WCW's War Games and WWE's Royal Rumble event.
The first-ever Elimination Chamber match took place at the 2001 Survivor Series as Shawn Michaels beat Triple H, Booker T, Chris Jericho, Kane and Rob van Dam to win the World Heavyweight Championship.

The match features a large chain-linked steel structure which encloses the entire ring. The chamber's floor is also platformed over the ringside area, which elevates it to ring level, inline with the ring ropes.
In each corner are four 'pods' in which four of the six competitors are locked inside before the match begins. The final two entrants then start the match akin to a regular one-on-one singles match.
Then, at regular intervals, a pod is chosen at random to open, allowing that Superstar to enter the match.
Once all four pods have been released, Superstars must then eliminate each opponent from the bout by pinfall or submission.
The winner is the last person standing once everyone else has exited the match.
In all, there have been 34 different Elimination Chamber matches across the men and women's division.
Up until 2010, these matches took place at various different events, before the gimmick became a PLE name in its own right.