If you were hoping for a rematch of their 2006 open weight grand prix final, sorry, they aren't fighting against one another.
In fact, they aren't even competing in the same sport, as Mirko Filipovic is putting his newly-won championship on the line against an opponent to be named in a mixed martial arts (MMA) bout, while Josh Barnett is appearing as a pro wrestler at Inoki Bom-Ba-Ye 2014 on Dec. 31, 2014 inside Ryogoku Kokugikan in Tokyo, Japan.
Sherdog.com brought word of the additions on Tuesday.
Filipovic sliced and diced his way to victory over Satoshi Ishii back in August (watch it), after spending some time in the kickboxing ring under the GLORY banner. Barnett, meanwhile, hasn't competed in MMA since his UFC loss to Travis Browne nearly a year ago.
But like "Cro Cop," he has been keeping busy with his other endeavors (like this).
Expect more fight card announcement for Inoki Bom-Ba-Ye 2014 to be revealed next month.