BEREA, Ohio (AP) - Browns quarterback Robert Griffin III broke a bone in his left shoulder and will miss at least eight games.
Griffin was injured on an 11-yard run in the fourth quarter of Sunday's 29-10 loss to the Philadelphia Eagles. As he tried to get out of bounds, Griffin was drilled by Eagles defensive back Jalen Mills.
The team said Griffin will be placed on injured reserve - under new rules he can brought off the list - and will be evaluated in 3 to 4 weeks.
The 26-year-old returned to the game for Cleveland's final series, but only handed the ball off while favoring his left arm. RG3 is the 25th quarterback to start for the Browns since 1999, a roll call of rookies, veterans and free agents.
With Griffin out, Josh McCown will start this week's home opener against Baltimore.