Although nothing has been confirmed yet, there was said to be a lot of gossip going around backstage that C.M. Punk may have been injured again after his match on Raw. However, Punk does have a history of appearing to be badly hurt and working through the pain, so it's uncertain if he was indeed injured or just beat up.
Dean Ambrose of The Shield also may have hurt his knee when Daniel Bryan tossed him out of the ring. At this point though his injury is not thought to be anything serious.