Highlights from "Art of War Fighting Championship 12: Invincible," a mixed martial arts event at the National Olympic Sports Center Auditorium in Beijing by sports entrepreneurs Andy and Conrad Pi of the Adoria Entertainment Group. The event (May 23, 2009) got a boost from Brazilian jiujitsu legends the Gracie family, sports announcer MIchael "Let's Get Ready to Rumble" Buffer, referee "Big John" McCarthy, and Sheikh Mohammed bin Zayed Al Nahyan, the Crown Prince of Abu Dhabi -- a hotbed of ...