Dwight Muhammad Qwai wore down Matthew Saad Muhammad in their Dec 1981 fight to stop him in round 10 to take the WBC Light heavyweight Title, he dug powerful body shots to Saad Muhammad's ribs and stayed on top of him, essentially he did not let him breath, and did not allow Saad to make one of his famous comebacks as he had so many times before. Sergey The Crusher Kovalov would be met with the same fate as Saad Muhammad faced, his punches would miss as Qwai would smash Kovalov's ribs, causing exhaustion. Dwight Muhammad Qwai turns into The Camden Buzzsaw and chops down Sergey in round 10.
Kovalev had his moment in the sun, but fell short against the best Super Middleweight around. I'll go with Qawi.
Camden Buzz Saw was at his absolute peak @175. He really does a number on Kov just bewildering him with a offensive display that Kov never had to deal with befor. Braxton inside of 8.