Things got weird when MMA Fighter Jonathan Ivey faked a heart attack and then sucker punched his opponent, knocking him to the canvas where Ivey opened up with what could have been fight ending ground and pound. 

But after about 30 seconds, Ivey inexplicably stepped back and decided to tap out, ending the fight 

Just more proof people who get hit in the head for a living are messed up. Bizarre fight.