Ward had a protective cast on his hand as the Browns worked out Thursday. It was his first time back on the field since breaking his thumb last week in a loss at Baltimore.
Ward underwent surgery earlier this week and had screws and plates inserted into his thumb. Ward's backup Ray Ventrone recently sustained a similar injury.
If both are out this week, rookie Josh Gordon could have a larger role in Cleveland's game plan. Offensive coordinator Brad Childress said Gordon, a second-round pick in the supplemental draft, had his best practice of the season Wednesday.