Wide receiver Kevin Curtis had arthroscopic surgery on his left knee, Eagles coach Andy Reid said today. Reid said that he had no idea when Curtis would be back playing, but that he anticipated a return before the end of the season.

"I think time will tell here, but I think so," Reid said.

Curtis had missed the last three games with the knee injury, but team MRIs never revealed more than inflammation.

"They didn't see much in the MRI," Reid said. "MRIs don't always show everything so they went in and just checked things out. There wasn't too much in there that they had to work on. They just snipped a few little things in there, but it wasn't a major thing."

Rookie Jeremy Maclin started in his place and will continue to do so. Curtis' absence means that Reggie Brown will be activated for the second straight week as the team's fourth wide receiver. The Eagles traded away rookie Brandon Gibson earlier this week for linebacker Will Witherspoon.

As expected, Omar Gaither had surgery on his left foot to correct a Lisfranc fracture. Reid hasn't ruled out a return for the middle linebacker, but he said it is highly unlikely.

"Right now it doesn't look good, but we'll see," Reid said.

The offensive line, meanwhile, took another hit. Guard Max Jean-Gilles was held of out of team drill portion of practice today with a right shoulder injury and was listed as questionable for Monday night's game at Washington. Reid said that Todd Herremans, back from a foot injury, will start at left guard and Nick Cole will start at right guard. With Jean-Gilles likely out, Herremans will probably play the entire game. Reid said that Stacy Andrews could spell Cole a few series at right guard.

Cornerback Dimitri Patterson (quadriceps) is also listed as out for the Redskins game.