Brook has far more than just a jab in his arsenal. He has the ability to go up a level and match or beat Porter in every department, speed , power, boxing. If he has it in him mentally to do so, he can stop Porter early by walking him onto something, if it goes to the cards though he will have a tough time winning in America. He sucked it up against Jones whilst clearly not fit ,so I think he does have the heart to match his ability. Can't wait.
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