We've heard how easily he makes 168 and that against Bute on fight night he was only 172 pounds which is about the same as what Alvarez and Trout weighed on fight night and they are only light middleweights. How much will Kessler weigh on fight night? Could Froch be giving away around half a stone? Could that be a factor? Martin Marray weighed more against Martinez on fight night than what Froch weighed against Bute.
Kessler is big for the weight, I'd reckon he'll come in high 170's For Froch to only add 4lbs, you'd think that would benefit his speed but one of Froch's biggest weaknessess is his lack of speed so I don't think that'll benefit him in that respect
Where does the 6lbs come from? The IBF have a 10lbs limit right enough, for the weigh-in on the morning of the fight, but they don't have a third weigh-in. I reckon Froch will come in at a light weight. Maybe 174lbs? Kessler's usually comes in at around 182lbs. Maybe he will come in light at 180lbs. I expect Kessler to be some 6-8 lbs heavier.
True, the IBF have a 10lb limit on the morning of the fight (no idea what time) but no limit on the night, Purdy weighed 156.6lb on Saturday morning