I think JuanMa will call off the fight if Concepcion can't make the 126 lbs. limit on Friday. IMO JuanMa will not follow the example of his popular namesake JMM who continued fighting the 2 lbs. overweight Floyd Jr. JuanMa will not do this IMO.
Marquez's problem was not that Floyd weighed two pounds over the limit. That didn't matter at all. Marquez's problem is that he was blown up like a balloon, and never belonged that high in weight in the ring.
Well aside from the JMM-Floyd weighing scale fiasco, Donaire continued fighting the overweight Rafael Concepcion. The late Chico fought the overweight El Temible.