"The Redskins have been spared serious injuries this training camp, but the bug is still going around. Chris Cooley missed the Redskins afternoon walk-through Wednesday, the same day Redskins Coach Mike Shanahan conceded the team is worried about the tight end's ailing knee.

"There is concern," Shanahan said. "The knee is sore. He's getting treatment and hopefully he keeps getting better."

After missing two practices, Cooley returned to action Tuesday. But after just one day of work, he was unable to participate in Wednesday morning's practice and was absent from the afternooon walk-through. "