Explains New Date for Roy Jones Fight

Mike Tyson vs. Roy Jones Jr. has officially been moved to Nov. 28 -- with another former world champ fighting on the undercard, TMZ Sports has learned.

The fight was originally set to go down on Sept. 12 -- but now, we're told the new date is locked in.

So, why the change to Thanksgiving weekend?

"Changing the date to November 28th will give more people the opportunity to see the biggest comeback in boxing history," Tyson said in a statement."This temporary inconvenience will last longer than Roy Jones Jr. He better be ready, I'm coming full force."The company behind the event, Triller, says the move was made to accommodate a larger audience than originally anticipated."Given the enormous…