maybe this is all a super swerve...punk did not hit cena with the chair...anyone remmebers when punk joined the new breed on ecw a few years back? he basically bugs bunnied the fuck outta them for a week or 2 (can't remember how long) by screwing up alll their plans.
perhaps cena and punk are in collusion in order to get rid of the nexus
, with him being the leader he can make them do crazy illogical crap...it would be a nice twist from the norm.