WWE is reporting that Dolph Ziggler suffered a concussion during Monday's WWE Superstars taping in Baltimore, Maryland. The injury occurred after Ryback hit him with a clothesline. Ziggler was reportedly "having some confusion and disorientation" in the ring, and a concussion was confirmed later in the training room.
Ziggler suffered a concussion in May 2013 that was serious enough to make him wonder if his career was over. Ziggler is set to undergo ImPACT testing to determine the nature and severity of the concussion.