According to a report on F4WOnline.com, you can add Ted DiBiase to the list of those injured during the WWE Over The Limit PPV last night in Detroit.
Apparently DiBiase suffered the concussion from the hard slap early on in the match. Due to the injury, some of the match had to be changed on the fly.
WWE has a pretty strict policy on concussions lately, so it would be unlikely to see DiBiase in the ring any this week.