Tennessee Titans running back Shonn Greene has been ruled out for Sunday's game at Washington with a hamstring injury, a league source told ESPN's Adam Caplan.
Greene, who missed practice again Thursday, is part of a running back-by-committee for the Titans (2-4) along with rookie Bishop Sankey.
Greene has rushed for 190 yards on 44 carries in his second season with Tennessee after four years with the New York Jets.
Sankey leads the Titans with 211 rushing yards on 50 attempts.