Washington Redskins injury report: Jordan Reed out for Week 7, Josh Doctson on IR

The Washington Redskins ruled out tight end Jordan Reed for the second straight game and placed first-round pick Josh Doctson on injured reserve Friday.

Reed continues to deal with a concussion and will miss Sunday's game against the Detroit Lions. He leads the Redskins with 33 receptions.

Doctson, a wide receiver from TCU, is bothered by an Achilles' tendon injury. He has played in just two games and has just two receptions.

The Redskins also have another ailing receiver in DeSean Jackson (shoulder). He is listed as questionable for Sunday's game.

There is growing concern over Reed's concussion, which is his sixth documented one dating back to his college career at Florida.

Reed suffered the latest one against Baltimore on Oct. 9 but didn't report symptoms to the team until two days later. He admitted earlier this week that he knew he had a concussion during the contest but just kept playing.

"I was feeling kind of nauseous and irritable and stuff like that, had a headache," Reed said Wednesday. "I took the concussion test and did pretty bad on it."

Reed's admission was disappointing to coach Jay Gruden.

"Obviously, we want our players to be honest, especially with the significance of the concussion," Gruden said. "We don't condone that in any way. I think, like I said, I don't think really he noticed he felt any concussion issues until Tuesday, if that makes sense."

Doctson's injury could be season-ending as he has been unable to make progress from the Achilles' tendon problem he has been dealing with since the summer.

Repeated tests have been unable to pinpoint why Doctson is feeling pain.

"We saw another specialist, a couple of them now, with all the work that we've put in," Gruden said Friday. "We thought it was best to immobilize him for a little bit of time and see if that can help.

"By the time he gets out of the boot, then he'll need time to see if he's ready and hopefully we'll get him back for the last, maybe, two games of the year. ... He could be out for the year. He could not be. I don't know yet, we'll see how he is. Big thing is to just get him healthy. Based on all the research we've done, we thought this was best for him basically."