It took me a couple tries, but once you get in the right groove its really simple.
Rds 1 and 2: Just circle around the ring, run away, and don't even hit him. If you are out of range don't block because blocking slows you down... only block if he gets close.
Rds 3-5: WAIT for him to swing and miss (he will attack, trust me) then jump in and throw 2 body hooks and GET OUT.
Rds 6-7: Just circle and don't engage due to the cut
After this he is pretty easy since he is gassed and wont 1 punch you nearly as much.
Just don't stay inside too long trying to rack up the body shots or he will catch you with something.. remember that you have 3 rounds, just be very cautious and try to get over 20 in the first couple rds, then turn it up in the 5th if you need to. You will probably be able to stand up from getting knocked down a total of 4 times in the fight, so if you can completely avoid him in rds 1 and 2 you are in pretty good shape. Later in the fight when they tell you to finish him, he has much less power then he did early on so you should be able to just bash him with combos and counter his big hooks
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