Phillip Thomas Phillip Thomas banged himself up in his first NFL action. (John McDonnell/The Washington Post)

NASHVILLE – Rookie linebacker Jeremy Kimbrough suffered a separated right shoulder with just more than two minutes left in Thursday’s Redskins win over the Tennessee Titans, and the status is not yet known on how long he will be sidelined.

An undrafted rookie out of Appalachian State, Kimbrough is trying to make the Redskins’ roster as a backup to veterans London Fletcher and Perry Riley.

He suffered the injury while trying to tackle Tennessee kick returner Michael Preston with 2:16 left on the clock. Coach Mike Shanahan said the Redskins would find out “in the next day or two” about Kimbrough’s status.

Meanwhile, rookie safety Phillip Thomas suffered a mid-foot sprain and left the locker room at LP Field in a walking boot. Thomas went down with injury with 4:31 left in the first quarter. He went down awkwardly while trying to make a tackle, stood up although wobbly, took a couple steps and then went down to the grass again.

Thomas initially was treated for a right shoulder injury and a foot injury. The shoulder injury ended up not being very serious, but the foot sprain prevented Thomas from returning.

The Redskins have Friday off, and then practice on Saturday, but it remains unclear how long it will take for Thomas’s sprain to heal.

Wide receiver Donte Stallworth suffered a strained left hamstring. It was the same hamstring that kept Stallworth out of practice two weeks ago. Stallworth said that he hopes he’s not sidelined for long.

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More on the Redskins:

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Ups and downs in the Redskins’ preseason triumph in Tennessee

Reid: A lot to learn yet for young defensive backs

Orakpo and Davis are bright spots in preseason opener

Photos from Nashville | Thursday night’s statistics

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