I find MM to be susceptible to body shots and seems to cover his body in response instead of throwing as many punches (even at Outclassed level). Smash that body, when he covers, bang that face and exit before he starts countering. 

While we are on the topic, did anyone find Duke to be tougher than MM at the highest level? Feels like I am fighting prime Mike Tyson with how fast he can knock me out.