WATCH: Boxing legend Mike Tyson fights Hong Kong martial artist Donnie Yen

Is this the toughest fight of Mike Tyson's career? 

The boxing great is taking on Hong Kong martial arts king Donnie Yen Ji-dan in the latest sequel to smash hit Ip Man as the series based on the life of Bruce Lee's wing chung teacher departs even further from reality. 

According to the Hollywood Reporter, Tyson plays a street fighter and property developer in the film, scheduled to be released in Hong Kong on December 25