According to PWInsider.com, Randy Orton and CM Punk suffered injuries during their matches at the "Over The Limit" PPV.
Randy Orton suffered a separated shoulder that appeared to have happened during a neck snap in his comeback against Edge. Orton's punching of the mat to tease the RKO furthered the injury.
CM Punk received over a dozen staples to close a wound to his head that occured in his match against Rey Mysterio. Punk's head was split open by Mysterio's knee brace.
Punk was seen walking around backstage with a bald head after he was treated, so they completely shaved his head once he returned to the back.