Stop me if you've heard this one before.

Longtime mixed martial arts (MMA) veteran Quinton Jackson wants out of the UFC. In fact, he's wanted out for a long time. At first he was simply biding his time until he was offered his next big movie role, following his stint as B.A. Baracus in the 2010 A-Team movie.

The phone has yet to ring.

Then he decided he was going to junk his career as a cagefighter and enter the world of Boxing. "Rampage" doesn't have any experience as a pugilist, but all that mattered to him was putting butts in the seats, kind of like his old Ultimate Fighter (TUF) 10 buddy Kimbo Slice.

Now Jackson tweets that he's got one more fight planned for inside the Octagon, then it's time for him to call it quits. He's not leaving combat sports, mind you, just the UFC.

Those comments, after the jump.

I will fight who ever they put n front of me, I always have, but it will b my last fight n the ufc, I have other things on my mind. Y should I stay? I don't need them or anybody else negative dealing with my carrie. I didn't say I would b done fighting, I just said I'm not fighting 4 the UFC, (u fight cheap) I said I have other things on my mind (big head). MMA ok UFC no ok.

Rampage turned in a lackluster performance in a unanimous decision loss to Ryan Bader at UFC 144 last month in Japan. He attributed his poor showing to a knee injury suffered in training camp, one severe enough that it prompted him to seek testosterone injections.

It was also the first time the Memphis native missed weight for a UFC fight.

The loss to "Darth" was his second in a row, having been choked out by division champion Jon Jones last September. He needed the judges to get past Matt Hamill and Lyoto Machida in recent wins, and hasn't finished an opponent since pasting Wanderlei Silva back in 2008.

Jackson claims he's ready to say goodbye to the UFC, but not MMA. Any fight fans out there want to try and make some sense of this? Or is this just another verbal "rampage" until he calms down and gets back to business?

Thoughts?