MMA Fighter is choked unconscious by referee

In a strange turn of events, an MMA fighter gets knocked out, tries to fight the referee, and is then knocked out a second time, by the referee.

In this video, you can see two MMA fighters, one getting knocked out within second of the fight's start. Then, things get bizarre. The referee comes over to the fighter and as he starts to get up, he seems disoriented and tries to take down the referee by his legs. The referee then defends himself by hooking his arm around the fighter’s neck, eventually rendering the man unconscious before his trainer comes to hold him up. It seems this fighter lost twice in a matter of 30 seconds.