While most in North America were fast asleep, Johnny Walker was putting in work. Walker scored a convincing finish in the main event of UFC Shanghai early Saturday morning. MORE: Fabian Edwards with dominating performance as PFL crowns new champions

Johnny Walker ended a skid of two straight knockout losses by scoring a shocking knockout of his own in a comeback win against Chinese light heavyweight Zhang Mingyang in the main event of UFC Fight Night in Shanghai.

Johnny Walker earned his first UFC win in more than two years on Saturday. | Getty/UFC If Johnny Walker's approach in the opening frame of the UFC Shanghai main event seemed out of character, well, there's a reason for that.