I think they both, Bernard and JOe, have had some hard fights lately
The two most trying fights I've seen Joe in except maybe against Reid were against Kessler and Bika. Against Lacy he had to fight at a really high pace, and he had an injured left hand, that fight couldn't have been easy even though in terms of boxing it was.

Bernard hasn't really had a physically challenging fight where he has really taken any sort of punishment that Calzaghe did against Bika or Kessler. It has been forever since I've seen somebody consistently land hard shots on B-Hop. For Hopkins I think him fighting at such a high level will definitely help for against Calzaghe, but don't take his figh with Wright who is a fast high paced southpaw to indicate what will happen against Calzaghe, Remember that Lacy was sparring with Wright before he fought Joe.