Rampage is running his legs and running his mouth

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For those who think Quinton Jackson is out of shape after filming "The A-Team" remake, think again.

"I just ran 5 miles for the 1st time since I wrestled in college. I'm in the best shape of my fighting career!!" Rampage wrote on his Twitter account earlier today, letting his fans know that he's taking his UFC 114 fight against Rashad Evans seriously.

Speculation has risen on account of film production photos that showed Rampage overweight - or at least bigger that how fans are used to seeing him. How big of a weight cut will he need to make? Will he start his training camp early? Slowly, Rampage is getting back in shape, and has been seen working out with fellow Wolfslair fighter Tiki Ghosn since late February and early March.

Since Rampage famously retired from MMA, only to come back to finish out his contract, some are questioning his heart and dedication. But facing Evans seems to be refueling his passion to compete.

"Since [Evans] wants to go all childish.........," Rampage wrote hours ago, "[Evans] mama so fat he bought her a UFC shirt & even [Dana White] thought it stood for ugly fat chick!!"

The two TUF 10 coaches love to ridicule each other - and they've battled over Twitter before, too. In The Ultimate Fighter house and gym, the former light-heavyweight champions were in each other's faces for the majority of the season, and fans, sometimes, tuned in to see their verbal fights rather than the competitor's physical fights.

On May 29, Jackson and Evans will finally settle their score inside the Octagon at UFC 114 in Las Vegas, NV. Expect a knockout.