Redskins place Kyshoen Jarrett on IR, activate Kory Lichtensteiger

ASHBURN, Va. -- Washington Redskins rookie safety Kyshoen Jarrett was placed on injured reserve, ending his season two days after a brutal collision with Dallas Cowboys running back Darren McFadden.

Redskins coach Jay Gruden said Monday that doctors were concerned with the nerves in Jarrett's right arm following the first quarter hit on McFadden, who went real low as he approached the safety.

The Redskins signed corner Cary Williams to take his roster spot and provide more depth in the secondary. Losing Jarrett hurts Washington in a few ways. He showed that he could play as a nickel corner in a pinch, a role he had not been playing of late with the corners in better health. He also could play both free and strong safety and displayed smarts and toughness. Jarrett also was a key player on special teams.

Washington's secondary has dealt with injuries throughout the season, starting in training camp. No member of the secondary started every game. Safety Dashon Goldson is dealing with a rib injury that sidelined him vs. Dallas, though he's expected to return this week. DeAngelo Hall switched from corner to safety. They also have Jeron Johnson, who signed in the offseason expecting to win the starting job. But he was beaten out first by Duke Ihenacho, then Trenton Robinson. Jarrett and Hall were used ahead of him, too. But Johnson will play a bigger role Sunday.

The Redskins should be at full strength at corner with the return of rookie Quinton Dunbar. He sat out the finale with a quadriceps injury.

Meanwhile, as expected, the Redskins activated center Kory Lichtensteiger off the short-term injured reserve list and waived center Brian de la Puenta. Josh LeRibeus started the final 11 regular-season games in Lichtensteiger's place. Gruden was non-committal about who would start vs. Green Bay on Sunday, but it's hard to imagine Lichtensteiger not starting if healthy.