WWE uploaded a video here on dot com with Dr. Michael Sampson updating the condition of The Miz.
Sampson confirmed what we reported earlier in that Miz underwent evaluation backstage at Raw. He also required sutures to close a laceration to his head.
On Tuesday, he was reevaluated and found to be neurologically in tact and was "totally cleared" to compete. As Alex noted, he did not suffer a concussion.