Last week, in the aftermath of the John Cena vs. The Rock at Wrestlemania, Brock Lesner made his triumphant return to the WWE after being gone for 5 years to pursue a career in the UFC. He came out last week with 5 minutes left in Monday Night Raw on USA and gave an F5 to Cena after feigning a friendly hand shake.

This week Brock Lesner opened the show, and while he was giving a promo, he was interrupted by Cena. Cena slapped Lesner in the mouth then all hell broke lose. Cena was tackled and was inadvertently hit in the mouth causing his lip to bust wide open. Check it out:

Lesner left the WWE in 2004, pursuing a career in the NFL. He played during the preseason for the Minnesota Vikings, but ended up being a late cut.

This is from Sescoops.com about Lesners contract:

Brock signed a 1-year contract with WWE over the weekend – and the backstage buzz is that Lesnar received one of the most lucrative contracts in company history. After seeing what a juggernaut Lesnar was in terms of PPV sales for the UFC, WWE is rumored to have guaranteed Lesnar $5 million to work a limited schedule. Based on what we’re hearing, Lesnar is contracted to appear twice a month for the next 12 months.