The boxer who took the dive was found unfit to fight in Sydney by the New South Wales Combat Sports Authority.

On 21 July 2010 Briggs returned to the ring in Perth to take on Danny Green for the IBO cruiserweight title. Before the bout Green labelled Briggs "unprofessional" after the latter weighed in nearly 4kgs over the agreed-upon weight. The ensuing fight was seen as a "farce",[4] with Briggs collapsing after 29 seconds following an innocuous left jab by Green, his first in the fight, which appears to have at most brushed the top of Briggs' head. Briggs was subsequently booed out of the stadium by irate fans, and had to be protected by management from projected missiles being thrown at him. In a post-bout interview Green labelled Briggs a "less than canine" and claimed he would not be getting paid for the fight, while also apologising to fans who had paid to attend.[4] Speculation has arisen as to whether Briggs threw the fight, as online bookmaker Centrebet labelled the bout "highly, highly dubious" following a massive betting plunge shortly before the fight.[5] The fight had been due to be held in Sydney but was moved at the last minute after the New South Wales Combat Sports Authority refused to commission the bout claiming Briggs was "unfit" to fight.[6]

Boxing is known to cause damage to the sense of balance. I thought it was the left jab to the body, a late pain in the lower stomach that caused him to give up. He could have gotten up. This statement is in hopes that he was physically unfit for fighting.

According to the Article that @kymbos posted, he was knocked out while sparring two weeks prior to the fight. Who the hell get's knocked out whilst sparring. Unless they do some different sparring down under.

Paul Briggs came out looking good, but I think he was just spent mentally. His trainers should have never let him fight.

Edit: This fight looks like shit.