At 118, Olivares gets him out of there in about 8, I think At 126, it depends on which Ruben shows up. He was either outstanding or a weight-drained bum one night to the next at 126 If it's the good Ruben, it's a great fight, could go either way... tough one to pick If it is the bum, MAB outboxes him and probably stops him
It might depend on the weight but I think I'd take Olivares by KO either way. Vastly superior fighter to Barrera.