Raw and SmackDown General Manager John Laurinaitis proclaimed Brock Lesnar is the new "face of WWE." Not if John Cena has something to say about it!

Lesnar will enter the squared circle for his first WWE match in eight years when he goes to war with Cena at Extreme Rules in an Extreme Rules Match.

Unlike typical WWE-sanctioned bouts, Exteme Rules Matches are no-disqualification and no-countout in nature. With virtually all rules out the window, the only way to win such a contest is by pinfall or submission. The new wrinkle was added by none other than Laurinaitis himself. 

Lesnar turned the WWE Universe upside down when he returned to WWE on the April 2 edition of Raw SuperShow and immediately targeted Cena with a devastating F-5. The Cenation leader didn't back down the following week on Raw and responded with an emphatic slap that triggered a near-uncontrollable brawl and left Cena with a busted lip. Little did Cena know he'd later be taking another ride in the whirlwind of the F-5, proving that Lesnar is not only intent on establishing himself as the most dominant WWE Superstar; he wants to dish out punishment every chance he gets, too.

It will be the first WWE in-ring action for Brock since WrestleMania XX on March 14, 2004. In just two years with WWE, Brock tore through some of the biggest and baddest competitors like an oversized wrecking ball and racked up an impressive list of accomplishments, including three WWE Championships, a Royal Rumble victory, and being crowned King of the Ring.

Now, after achieving great success in the world of mixed martial arts, Brock has his wild eyes locked on the very man he tangled with nearly a decade ago. It was early in 2003 when Cena was a cocky, trash-talking performer looking to rise up the ranks of WWE by picking a fight with "The Next Big Thing." Armed with insult-laced raps that got under Brock's skin, Cena continued to antagonize Lesnar until a final showdown for his WWE Title at Backlash on April 27, 2003. 

Even though the two rivals haven't squared off since, it's very clear that Brock still wants to inflict pain on the 10-Time WWE Champion after all these years. Well, there isn't a more suitable domain to unleash that hunger for pain than at Extreme Rules, which takes place live on pay-per-view April 29 from the Allstate Arena in Chicago.

Coming off a very close loss to The Rock at WrestleMania, Cena will surely be looking to make a powerful statement in what could be the most physically demanding battle of his career. And judging by Brock's recent unpredictable attacks, there's no telling what he's capable of doing on the one night of the year when the entire WWE throws out the rulebook.