Cleveland Browns running back Trent Richardson did not play during the second half of Sunday's loss at Indianapolis after apparently aggravating a rib injury that had him considered questionable coming into the game.

Richardson had eight carries for eight yards and caught two passes totaling 11 yards in the first half of Sunday's 17-13 defeat, but was sidelined the entire two quarters as Montario Hardesty and Chris Ogbonnaya handled rushing duties.

The highly regarded rookie initially injured his ribs in the Browns' 34-24 win over Cincinnati last week, sitting out the majority of the second half of that contest as well.

A pair of defensive starters, tackle Ahtyba Rubin (calf) and cornerback Sheldon Brown (ankle), also left Sunday's game with injuries.