Tennessee Titans quarterback Jake Locker has been cleared to practice after suffering a left shoulder injury in September, coach Mike Munchak said Tuesday night. Speaking on his weekly radio show, Munchak said Locker could potentially start this Sunday against the Miami Dolphins. Locker fractured a bone in his shoulder while suffering a separated shoulder during a Sept. 30 game. The Titans are still waiting for results of a MRI to see if the shoulder is sufficiently healed. Before he was hurt, Locker had thrown for 781 yards in four games with four touchdowns and two interceptions.