Jordan Reed waits to haul in a pass during practice against the Patriots last week in Richmond. (John McDonnell/The Washington Post)

RICHMOND — Four days after coming down with what the team’s medical staff believed was a 24-hour bug, tight end Jordan Reed finally felt good enough to attend practice, but only as an observer.

Reed watched from the sideline as Washington’s players went through their final practice of training camp. His energy level still was low, but he no longer was suffering from the symptoms that plagued him since Saturday.

Reed hadn’t been able to keep food down, and initially thought perhaps something he ate upset his stomach. Monday morning he thought he could return to practice, but he threw up on the way to the training facility, and returned to the team hotel.

Reed did some jogging on Tuesday morning, but didn’t take part in the walk-through or drills.

“I felt bad, man,” Reed said. “I never want to miss practice, and I never want to miss a day with the guys, and the chemistry and all that stuff. I’m just gonna work hard these next couple of days and try to get back.”

Washington’s players have Wednesday off and then return to practice Thursday. Reed hopes to join them, and coach Jay Gruden said he shared that optimism.

“He looks better,” the coach said. “Hopefully, he’ll drink some Ensure or something like that, get some protein back in his system. But he looks good. He’ll be fine.”

Meanwhile, starting free safety Ryan Clark returned to practice after taking part in Monday’s action in a limited capacity because of a hamstring injury. He practiced fully on Tuesday. Running back Silas Redd (ankle) and linebacker Darryl Sharpton (ankle) also returned to practice.

Safety Phillip Thomas (hamstring) remained sidelined, but did ramp up his training activity with strength coach Ray Wright. Running back Chris Thompson (ankle), linebacker Gabe Miller (ankle) and tight end Mike Caussin (knee) all missed practice as well. Cornerback DeAngelo Hall (back) took part in individual drills on Monday, but was an observer on Tuesday.

Defensive end Jarvis Jenkins, linebacker Ryan Kerrigan and wide receiver Santana Moss all received veterans’ days off.