Cleveland Browns quarterback Josh McCown suffered a broken collarbone in Sunday's loss to the Ravens, Browns defensive coordinator Ray Horton said Friday.
McCown had already been ruled out for Week 3 against the Dolphins with a shoulder injury, but the extent had not previously been disclosed.
McCown is a candidate to join Griffin on the IR, which would mean one of the two quarterbacks won't return this season. Each NFL team can activate one player off of injured reserve per season, once that player has spent eight weeks on the list.
Horton said McCown played through the injury against the Ravens. He completed 20 of 33 passes for 260 yards and two touchdowns.