"He has a concussion," head coach Gary Kubiak said the post-game press conference. "That's the diagnosis and that's why he didn't play the rest of the way."
Cushing led the defense with nine tackles. He also added a forced fumble on carry by Marshawn Lynch in the second quarter which was recoverd by the Texans.
Smith did not notice that Cushing was out of the game until he saw Tuggle in the huddle. Cushing's absence definitely affected the defense, according to Smith.
"It kind of threw me off," Smith said. "Knowing who Brian is, the thing I would say changed is, he's an animal; he's everywhere on that field and you seen that in the first half that if anybody was coming up the middle, he was laying that hat on them."