The Denver Broncos didn't emerge from their preseason opener (and Super Bowl XLVIII rematch) against the Seattle Seahawks unscathed - running back C.J. Anderson suffered a concussion in the contest.

Seahawks linebacker Brock Coyle delivered a big hit that forced Anderson out of the game. The running back appeared woozy as he walked to the sideline.

Anderson's prognosis is unknown, but it's a safe bet that he'll miss some practice time this week.

Anderson played behind Ronnie Hillman in the Broncos' backfield Thursday. Both players should begin the season as backups to Montee Ball, who didn't play Thursday as he recovers from an appendectomy.