The Browns placed Strong (concussion) on injured reserve Friday.
Strong (concussion) is out for Saturday's game against the Ravens, Mary Kay Cabot of The Cleveland Plain Dealer reports.
Strong (concussion) did not participate at practice Wednesday, Mary Kay Cabot of The Cleveland Plain Dealer reports.
Head coach Kevin Stefanski said Tuesday that Strong has entered concussion protocols after injuring his head against the Dolphins on Sunday, Ashley Bastock of The Cleveland Plain Dealer reports.
Strong carried five times for 33 yards and caught three of five targets for 15 yards in Sunday's 20-3 loss to the Dolphins in Week 17.
Strong had two carries for six yards and caught both of his targets for three yards in Sunday's 24-6 loss to Cincinnati in Week 16.
Strong will serve as the backup running back Sunday against the Bengals.
Strong had two carries for eight yards and went untargeted in Sunday's 27-10 loss to the Chargers in Week 9. He also returned two kickoffs for 47 yards.
Strong caught his lone target for three yards and returned three kickoffs for 59 yards in Sunday's 29-24 win over the Ravens in Week 8.
Strong is expected to back up Nick Chubb in the Browns' backfield, as Jerome Ford (hamstring) was designated as out for Sunday's game against Baltimore.