tyson got called out by the gracie family on ppv in ufc 2 i believe,the gracies also called tysons camp and manager to set up a fight with mike vs rorion or royce,tysons camp never responded.tyson had the world to lose,once royce submitted tyson and word got out that mike got beat by a skinny 175lb dude his career would have been hurting,he wouldnt be able to run around saying(im the baddest man on the planet) anymore,lol