I realize he's 40, but power is usually one of the last things to fade for a fighter. Bisping is tough as nails but tonight I felt Silva landed strikes that normally would have dropped the opponent. Instead they were just shrugged off. In general he looked like his striking wasn't nearly as damaging, and not just from losing a step which is normal. I love watching Silva fight and this isn't meant to fighter bash. We already know he did PED's it's just to what extent. I think tonight shed some light on that.