Extreme Rules (2013) was a professional wrestling pay-per-view (PPV) event produced by WWE. It took place on May 19, 2013 at the Scottrade Center in St. Louis, Missouri. It was the fifth event under the Extreme Rules chronology, with the event having originated in 2009. Eight matches took place on the event's card and one pre-show match was streamed on YouTube. The theme of the event was that most matches are contested under hardcore wrestling regulations. The event received 231,000 buys, down from last year's event of 263,000.

The professional wrestling matches at Extreme Rules featured professional wrestlers performing as characters in scripted events pre-determined by the hosting promotion, WWE. Storylines between the characters played out on WWE's primary television programs, Raw and SmackDown.

At WrestleMania 29, Triple H defeated Brock Lesnar in their rematch. Lesnar's manager, Paul Heyman, then issued one final match to settle things between Triple H and Lesnar: a steel cage match at Extreme Rules. On the April 22 episode of Raw in London, England, Triple H accepted the match by assaulting Heyman with a Pedigree. Two weeks later on Raw, Lesnar would respond by coming to WWE headquarters and trashing Triple H's office and attacking nearby employees. The week after on Raw, Triple H would come face to face with Lesnar, goading him in coming into the steel cage. Triple H would gain the upper hand and throw Lesnar into Heyman, resulting in both men retreating up to the ramp.

...
Wikipedia