The Redskins will once again look to Vernon Davis to fill the void of the injured Jordan Reed, who has been ruled out for Thursday's game against the Cowboys.

This week's injury report is brought to you by Inova, the Official Health System of the Washington Redskins.

For the fifth straight game, the Washington Redskins will be without Pro Bowl tight end Jordan Reed.

Reed (hamstring), along with center Chase Roullier (hand), defensive lineman Terrell McClain (toe) and safety Montae Nicholson (concussion) will be out for Thursday night's game against the Dallas Cowboys at AT&T Stadium in Arlington, Texas.

Tackles Trent Williams (knee), Morgan Moses (knee and ankles) and Ty Nsekhe (core muscle), guard Brandon Scherff (knee), defensive lineman Matt Ioannidis (hand/ankle) and linebackers Martrell Spaight (ankle) and Zach Brown (shoulder/Achilles) are questionable for the contest.

Reed has been dealing with a hamstring injury he initially suffered in Washington's first game against the Cowboys earlier this season, a Week 8 loss at FedExField in Landover, Md.

With the five-year veteran once again sidelined, the Redskins will rely on the trio of Vernon Davis, Niles Paul and Jeremy Sprinkle at the tight end position.

"We are just trying to take it day by day and he's trying to get stronger in the weight room, just taking it slow," said Redskins head coach Jay Gruden about Reed. "That's the only thing we can do. Your guess is as good as mine, but obviously there is an issue there otherwise I would like to think he would be further along now, but we just have got to get him healthy."

Roullier's absence will once again give Tony Bergstrom the start at center with Demetrius Rhaney backing up the veteran.

While Bergstrom had filled in at guard during his first three appearances with the Redskins, the 31-year-old started at center last Thursday against the New York Giants and played all 71 of Washington's offensive snaps.

Bergstrom could be joined in the starting lineup alongside both Williams and Nsekhe depending on if both are active.

Williams, of course, has been playing at a Pro Bowl level at left tackle for years now and his reinsertion into the lineup could slide Nsekhe over to guard.

Nsekhe played guard for the first time in his career in the second half of Washington's Week 11 game against the New Orleans Saints but returned to tackle last Thursday with Williams inactive.

"I can't remember a time in my career when I looked down and the left guard is towering over me and the center is an inch taller than me," Williams said. "I'm basically the shortest guy on the line, I may have a quarter-inch on Brandon, maybe. [Morgan Moses] being 6-foot-7, I feel like I should be the center."

Defensively, the Redskins will once again have McClain and Nicholson sidelined as both have been ruled out for the second consecutive week.

While DeAngelo Hall took over for Nicholson against the Saints, Deshazor Everett started at strong safety last Thursday.

"I think Deshazor played pretty well," Gruden said. "We'll see how it goes though. We'll try to use both of them, but Deshazor right now is the starter and once Montae gets back, we'll see where Montae is and use him also."

Spaight, meanwhile, returned to practice this week with a limited workload after being inactive against the Giants.

In his absence, the Redskins rotated Zach Vigil and Josh Harvey-Clemons alongside Zach Brown at inside linebacker.