ASHBURN, Va. (AP) - Washington Redskins rookie safety Jordan Bernstine is out for the season with torn ligaments in his right knee.

The Redskins moved quickly to replace him with third-year safety Jordan Pugh, who was cut this month by the Carolina Panthers. Pugh announced Monday on Twitter that he was signing with Washington.

Seventh-round pick Bernstine was injured on a kickoff in the fourth quarter of Sunday's 40-32 win over the New Orleans Saints.

The safety position was already depleted because of Brandon Meriweather's knee injury and Tanard Jackson's season-long suspension for failing a drug test.

Also, coach Mike Shanahan said X-rays were negative on receiver Pierre Garcon's sore right foot. The coach said Garcon will have to play through some pain in the foot and will be reevaluated later in the week.

The Atlanta Falcons lost franchise player Brett Grimes to a torn Achilles tendon in their season-opening victory at Kansas City.

The cornerback got the franchise tag when he couldn't agree on a new contract, receiving a salary of $10.2 million. The Falcons also traded for Asante Samuel to boost their secondary, but now will be without Grimes for the rest of the season.

Another top cornerback, Jets All-Pro Darrelle Revis, has a concussion.  Revis was injured midway through the fourth quarter of the Jets' 48-28 victory over the Buffalo Bills when he landed on his stomach when he dived to tackle C.J. Spiller and was accidentally kicked in the head by teammate Bart Scott.

Cardinals quarterback John Skelton has a low right ankle sprain and coach Ken Whisenhunt is noncommittal about Sunday's game at New England.

St. Louis Rams offensive tackle Rodger Saffold has returned to St. Louis after spending the night in Detroit for observation from a neck injury sustained against the Lions.

Coach Jeff Fisher was expected to provide an update on Saffold's condition later Monday.

Saffold crumpled awkwardly after disengaging from Lions safety John Wendling on the play when Brandon Gibson made a touchdown reception to give the Rams a 20-13 lead with 9:45 to go. After being carted off the field, he had movement in his arms and legs.

The 6-foot-5, 314-pound Saffold is in his third season with the Rams after getting drafted in the second round in 2010.

He started nine games last season but missed the last seven games with a pectoral injury.