"Medical tests Tuesday revealed no serious damage to Bengals rookie QB Andy Dalton's wrist area, but his status for Sunday's game against the Broncos remains in doubt, according to a league source.

Dalton was knocked from the Bengals' season-opening victory over the Browns during the second half and didn't return.

The X-rays conducted Sunday were normal, and other tests showed no serious injury, but the ailment could limit Dalton's ability to practice early this week. For a rookie quarterback who already missed offseason workouts because of the lockout, that would be significant."