Neither have been announced on teh roster. So I imagine they pulled out quietly.
Admittedly, I totally understand, in the case of Mousasi. The guy has two really high profile fights pretty close to this event (the Babalu fight he's through now and the Sokoudjou fight coming up), so he probably wants to focus on his MMA training.
Man, that's a bummer. I was really loooking forward to seeing how they would do.
Hopefully they'll give it a shot next year.
Jack Johnson: Boxing's greatest Heavyweight champion.