This could be a really good fight, don't know how Groves will handle it more than anything but it can't hurt to talk yourself up. Froch does seem a bit rattled in that video, and he's a bit of a cunt isn't he. Doubt he'd let this affect him in any big way, but he's obviously pissed and Groves isn't an easy opponent for him anyways.
It's all on Groves to show what level he is really at and what kind of chin he has for one thing, but he has the right kind of style to beat Froch imo. He'll have to be smart and have done a lot of work, but he does have some tools Froch won't like. If Froch can cut off the ring and get to him it might be curtains early like the Bute fight though, I have no idea.