Mixed Marital Arts is the fastest growing sport in the world, and the UFC is definitely a major reason for the recent popularity growth. The sport has grown so much that each pay-per-view event gained the Ultimate Fighting Championship over $19 million last year.

Trying to cash out on MMA's popularity, THQ released the massively successful UFC 2009: Undisputed, and soon after, EA announced their own MMA title called EA Sports MMA. UFC president Dana White does not seem too happy about the title one bit.

Rumors have surfaced that White is threatening UFC fighters who sign on with EA Sports MMA will have their UFC contracts immediately terminated. This isn't the first time White has released fighters who have not cooperated with his video game demands, however, releasing Jon Fitch in November after Fitch was hesitant to sign a lifetime contract to use his name and likeness in all future UFC games.

In other news sure to piss Dana White off, former UFC superstars Tim Sylvia and Randy Couture have both signed deals with EA's game, and have publicly bashed the UFC and its fighters.

No wonder people love Mixed Martial Arts; tons of fighting in and out of "The Octagon."