Berto and Ortiz would both start favourite against Brook at this point. They are proven "world-class" fighters Brook isn't.

The best two fighters Brook has faced are - Lovemore Ndou and Matt Hatton (arguable). Does anyone seriously think Berto and Ortiz would'n't have whitewashed those two as well?

I'm supporting Brook but until he fights a genuine world-class fighter we don't know shit.