Decades before mixed martial arts became popular in the United States, events matching fighters of different fighting disciplines were very common in Japan. They weren't called "mixed martial arts" at the time, but that's essentially what they were.There's an entire history of pro wrestlers fighting specialists from other martial arts (particularly judo) that were leaving out, but during the'70's Antonio Inoki began to put the concept of "mixed martial arts" on the map with his matches against fighters from other disciplines.

Before and after his matchup against Muhammad Ali, Inoki would frequently compete against other martial artists in what are widely accepted to be "worked" (ie: having a predetermined outcome) matches. Inoki fought boxer Chuck Wepner, judo Gold Medalist Wilhelm Ruska and world karate champion Willie Williams among others. His most famous match internationally, however, was against Ali.

There's a great deal of uncertainty about many of the stories surrounding how the event came together and transpired, but a few facts are now known. Ali took the fight as it was a large and presumptively easy paycheck. The big money he was earning is what kept him from walking out when his camp started to disagree with Inoki's handlers over the rules and 'finish' fo the fight. Some suggest that it was supposed to be a fair fight going in, but Ali at the last minute insisted on rules more favorable to him. The more likely version of events is that Ali's handlers agreed to a predetermined finish, only to have Ali balk at the last moment.

By the time the fight began, Ali's handlers had obtained a ridiculously one sided set of rules that prohibited Inkoi from using a closed fist, striking Ali in the head at all, using any chokes or submissions or even trying to take the fight to the ground. Were it not for the huge amount of money he'd be leaving on the table, Inoki would have been justified in not fighting at all under these highly restrictive and one-sided conditions.

The painfully boring event that ensued was, despite many suggestions to the contrary, an actual fight. Inoki spent most of the match on the ground, unsuccessfully imploring Ali to join him and throwing kicks at his opponent's legs. Ali did even less throughout the match, throwing a few jabs and trying to protect his knees and legs. The fight was scored on a 5 point system, and ended up in a 74-74 draw. It's worth noting that Inoki had three points deducted for very dubious infractions: the first for throwing (and missing) with a drop kick, the second for throwing an elbow to Ali's head and the third for a swift kick to Ali's ribs. Had these deductions not occurred, Inoki would have won by decision. From a strict standpoint of scoring boxing, he probably deserved to win since he at least tried to execute a fight plan despite the restrictions he faced. For all practical purposes, however, a draw was the proper outcome. Both guys got paid and no one won, least of all the fans.

The fight was officiated by former pro wrestler "Judo" Gene Labell, a legendary tough guy considered at the time to be the 'baddest man on the planet'. He could have easily beaten up both men, possibly at the same time. That might have provided some much needed entertainment to liven up the tedious charade masquerading as a fight.

After the fight, Inoki's popularity in Japan was greater than ever. He became something of a hero for trying to fight despite having the rules so decidedly in his opponent's favor. He'd continue his fights against other martial artists and remain one of the country's most popular sports figures for years to come. His 'worked' martial arts matches can be credited with sparking later hybrid promotions showcasing pro wrestling and martial arts that evolved into PRIDE, RINGS and the major Japanese fight promotions of today.