Right tackle Jammal Brown was full-go in Wednesday's practice, but left tackle Trent Williams was sidelined.
Both are coming off knee injuries suffered in last Sunday's game against the Green Bay Packers.
Head coach Mike Shanahan said it was a relief to see at least one of his offensive tackles back in action.
It's hoped that Williams will be able to return to practice on Thursday, Shanahan added.
"Hopefully there are no setbacks," he said.
The Redskins have faced some elite pass rushers already this season, and two more arrive at FedExField this Sunday night.
The Indianapolis Colts boast two of the best pass rushers last decade in Dwight Freeney and Robert Mathis.
Freeney has three sacks this season after posted 13.5 sacks a year ago. In his 9-year NFL career, he has posted double-digit sacks six times.
Freeney draws so much attention from blockers that offenses sometimes forget about defensive end Robert Mathis, who leads the Colts with four sacks this season. In the last three years, Mathis has 25 sacks.
"Even when the tackles are healthy, there's concern [about facing Freeney and Mathis]," Shanahan said. "Those two defensive ends do a great job, consistently. They rush the quarterback and react to the run. They have been doing that for a number of years.
"They have been very productive. You better have a game plan for them."
-- REDSKINS SIGN SMALL TO PRACTICE SQUAD
The Redskins have signed rookie wide receiver Ray Small to the team's practice squad.
Small took the practice squad spot of Keiland Williams, who was signed to the active roster last week.
Small, at 5-11 and 180 pounds, is regarded as shifty and fast. He spent preseason with the Minnesota Vikings. He played in two games and caught four passes for 43 yards.
A native of Cleveland, Small played college football at Ohio State. He played wide receiver and served as a kick returner.
-- McINTOSH HAS MILD CONCUSSION
Linebacker Rocky McIntosh sat out Wednesday's practice due to a mild concussion, Mike Shanahan said,
McIntosh suffered the injury in the Packers game.
"He just felt a slight headache on Monday," Shanahan said. "Hopefully there's nothing very serious. We'll go through the symptoms and evaluate it day by day."
-- HAYNESWORTH DUE BACK
Defensive lineman Albert Haynesworth is expected to return to Redskins Park on Thursday.
Haynesworth left the team to be with his family last Friday after his brother Lance McCoy died in a motorcycle accident in Nashville.
Haynesworth's family held a memorial motorcycle ride last Sunday and a funeral service on Tuesday.