WWE.com has posted an article informing fans that World Heavyweight Champion Dolph Ziggler suffered a concussion during this week's Smackdown tapings, during Big E. Langston's match with Jack Swagger.
"According to WWE physician Dr. Michael Sampson, Ziggler was injured during the early part of the fracas after a blow to the face. A post-match examination by WWE medical staff confirmed the injury."
At this time Dolph Ziggler's Extreme Rules pay-per-view status is unknown. Although WWE has been known to fabricate injury stories in the past to further a feud, the company has been taking concussions very seriously in recent years, and this incident does not appear to have any direct influence on the story surrounding the World Heavyweight title picture.
We will have an update on Ziggler's condition as it becomes available.