Tyler Polumbus (right) did not practice Wednesday because of a concussion but was on the field for a walk-through. (Associated Press)

Center Will Montgomery participated fully in the Redskins’ practice Wednesday despite a partially torn medial collateral ligament in his left knee. Montgomery said he had “no doubt” he will be in the lineup Sunday at Philadelphia.

“I feel good,” Montgomery said. “I practiced the whole practice and I feel great.”

Right tackle Tyler Polumbus participated in the Redskins’ walk-through but did not practice. He is attempting to return from a concussion and must be cleared by an independent neurologist before practicing or playing in a game.

“I went out there today and I did what I could,” Polumbus said. “We’re going to just go from there.”

Both injuries occurred during last Sunday’s win at Cleveland. The Redskins finished the game with Jordan Black filling in for Polumbus at right tackle. Kory Lichtensteiger was moved from left guard to center to replace Montgomery and Maurice Hurt took over at left guard.

Such offensive line reshuffling has been rare for the Redskins this season, when the same five lineman have started every game. Members of the offensive line said Wednesday they’re hopeful that will continue this week.

“I think we’ll have all our guys and we’ll be as consistent as we have been,” Lichtensteiger said.

Said right guard Chris Chester: “I’m not terribly concerned. These guys, if there’s a chance to play, they’re going to play. So I’m not even worried about it.”

Coach Mike Shanahan said Montgomery has a second-degree MCL sprain, which means the ligament is partially torn. But Montgomery appears intent upon playing through the injury.

Shanahan mentioned Hurt and Tom Compton as potential replacements at right tackle if Polumbus can’t play, with Black now serving a four-game suspension for use of a banned performance-enhancing substance.

“I’m hoping there’s no setback,” Shanahan said of Polumbus. “He’s feeling very good right now. You’ve got a protocol that you go through and it’s a day-by-day evaluation. But he did walk-through today and he feels good. He’s had no setbacks since the game so that’s a good sign.”

The team’s offensive line was considered an area of concern entering the season. But the unit has played well and its cohesion has been an important factor.

“It’s been very important, just playing with the same guys and getting comfortable with the same guys the whole season,” left tackle Trent Williams said. “It’s been a tremendous help and hopefully, yeah, it can continue.”