Brandon Banks underwent knee surgery last week to repair a knee injury and he is expected to be sidelined 2-3 weeks, head coach Mike Shanahan said.
Banks, the 5-7, 150-pound rookie who has emerged as the Redskins' primary kickoff and punt return specialist, injured his knee in the Detroit Lions game on Oct. 31.
"He had an MRI and found out there was a meniscus tear," Shanahan said.
Banks discussed his options with Redskins senior orthopedic consultant Dr. James Andrews and it was decided that he should have the surgery now instead of later.
"Dr. Andrews told [Banks], 'If you get it taken care of right now, then there's a chance for you get back quickly,'" Shanahan said. "So we'll just kind of see how he heals."
Banks is expected to be out for this Monday night's game against the Philadelphia Eagles. His status for the Nov. 21 game at Tennessee is to be determined.
On kickoff returns, Chad Simpson is the likely replacement.
On punt returns, Phillip Buchanon is expected to resume that role. Buchanon opened the season as the Redskins' punt returner before the job was given to Banks.
Shanahan mentioned wide receiver Anthony Armstrong as an option on punt returns as well.
Banks had provided a spark for the Redskins' return units.
Through eight games, Banks has 16 kickoff returns for a 27.3-yard average and one touchdown, a 96-yarder against the Lions. Among kick returners with 15 or more attempts, Banks is ranked sixth in the NFL.
He has returned 17 punts for a 13.8-yard average, with a long of 53 yards against the Eagles in Week 4. He is ranked third in the league among punt returners with 10 or more attempts.
-- TORAIN PARTICIPATES IN PRACTICE
Running back Ryan Torain said he was able to test his injured hamstring in Monday's practice at Redskins Park.
"I was out there working hard," Torain told reporters.
Mike Shanahan said it was too soon to know whether Torain or Clinton Portis would be available for the Eagles game.
Portis has been sidelined the last four games with a groin injury.
With the game set for next Monday night, the Redskins' first practice of the week with game plan preparation is not until Thursday, Shanahan added.
"I think I'll get a better feel for their availability over the next few days," Shanahan said.