I do think Fedor looks more slight as of late. He doesn't look the bullish figure he was throughout his 20s and as of a few years ago. Against Werdum he looke porgy but not string. Didn't really seem to effect him mind, just didn't get out of the guard (never been an issue for him before) and got caught. It happens. His inactivity will be a major issue but I think he willtrain hard, he will really want to make a statement IMO. It may take him 5 minutes to shake off some rust and it may be fairly rough but I see him timing Silva at some point and finishing him with some brutal GnP.
Bigfoot is a lot better than most people give him credit for. He is not hopeless in this fight. I don't think he will win, but it won't be the most shocking thing ever if he does.
Silva is a good style for Fedor. He is big and easy to hit. He isn't a bad fighter but he is human and can be hurt. When Fedor does that, he usually looks for a conclusive finish. If you aren't out, he'll take the first sub on offer.
I have always said since this match was made that I fancy Bigfoot for the win. It's one of those ones where I don't know why but I just have a feeling. Fedor has lost some hunger or something, can't quite put my finger on it. HE seemed to almost be relieved when he lost to Werdum, like the weight and pressure of his unbeaten run was lifted from his shoulders.