Redskins.com looks at some of the key players to keep an eye on during Thursday's Redskins-Cardinals preseason game at FedExField.
"Redskins-Cardinals: 4 Players to Watch" is presented by Papa John's.
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-- DEVIN THOMAS
Devin Thomas finds himself in the familiar position of having to prove himself again. The third-year wide receiver did not play a down on offense in the Redskins' preseason game against the New York Jets last week.
Coaches said they wanted to get other wide receivers more involved in the offense. Still, it was surprising that Thomas – thought to be a key offensive contributor heading into training camp – would be sidelined.
It's not like Thomas was invisible in the Redskins' first two preseason games. He has four catches for 78 yards, including a 44-yard touchdown catch.
With young receivers Anthony Armstrong and Terrence Austin coming on, Thomas may need a strong game just to secure a roster spot.
-- KEILAND WILLIAMS
An undrafted rookie out of LSU, running back Keiland Williams has impressed coaches this preseason.
Williams, 5-11 and 230 pounds, is competing for a backup job with Larry Johnson, Willie Parker and Ryan Torain. He has posted 17 carries for 68 yards, a 4.0-yards-per-carry average, and two touchdowns.
What could help separate him is his ability to catch passes out of the backfield. He has five catches for 68 yards this preseason to lead Redskins running backs.
If he can prove he's capable in pass protection and can excel on special teams, then he could earn a roster spot.
-- JEREMY JARMON
A year ago, Jeremy Jarmon made a rapid rise from NFL Supplemental Draft pick to a contributor on the Redskins' defense on game days.
Now Jarmon faces a degree of uncertainty in terms of his place on the Redskins' roster.
Coming off a knee ligament injury, Jarmon slimmed down last offseason to play linebacker and then regained weight when coaches asked him to switch to defensive end.
He has worked with the second- and third-team defense in training camp and preseason as he adjusts to the Redskins' 3-4. He showed promise last week, recording a sack.
-- CHRIS HORTON
After sitting out the Redskins' preseason opener with a groin injury, Chris Horton has turned in two solid games to improve his chances of making the final roster.
He has posted eight tackles on defense and three tackles on special teams in the last two preseason games.
Horton is listed as the Redskins' third-string strong free safety, a position he is adjusting to after playing strong safety the last two years.
The versatility can only help him. He is competing with Reed Doughty, Tyrone Carter and Anderson Russell for one of the remaining safety spots. His future could depend on if the team keeps four or five safeties on the final roster.