Quote Originally Posted by Master View Post
Brook has campaigned his career at welterweight and has good boxing skills, hand speed, heart and determination but I believe this is all predicated because of his size and strength over welterweights.

Brook could do well at light middle but at middleweight that advantage would be negated and I do not believe he would be a world class boxer. I could not see him work his way up the ranking as GGG''s opponents did to earn their fight with the champion.
You asked "How can a fighter two weights below be tougher fight that contenders/ex champions at the weight the champion fights at?" Mosley came from 135 for example to 147. Do you think he was a tougher fight than contenders/ex champions at the weight? Hopkins from 160 to 175 is another example.