Eagles center Jason Kelce injured his right foot during Sunday's game against the Redskins and was on crutches and wearing a boot on Monday at the NovaCare Complex.
Kelce said the Eagles had yet to identify the injury but that there should be a diagnosis by Tuesday after a magnetic resonance image.
"Worst-case, they say it could be Lisfranc," injury Kelce said. "But they don't think it's that."
A Lisfranc injury involves one of the small joints of the midfoot.
Coach Andy Reid did not have a news conference Monday and as such did not deliver an official injury report.
If Kelce has a Lisfranc injury he could have an extended period of rehabilitation. Certain types of Lisfranc injuries require surgery and several months of recovery.
Kelce got hurt when guard Danny Watkins fell on his leg in the second half. Because he didn't leave the game and played a few more series, the Eagles training staff did not think the injury was serious. Kelce wasn't listed on Reid's postgame injury report.
The rookie, though, said he woke up Monday in a lot of pain and could hardly walk.
Kelce started all 16 games this season after winning the starting center spot in training camp. With offensive line coach Howard Mudd expected to return next season, Kelce is expected to anchor the line once again.
Quarterback Michael Vick is hoping for a healthier 2012.
"You have to be available for 16 games for this team, and I have to hold myself accountable and have to get away from trying to do too much," Vick said Monday.
Vick missed three games this season with broken ribs and could not finish two others.
"Not waking up sore on Monday mornings doesn't mean that you didn't give it your all," Vick said. "I think it means you played smart. I went into the game [Sunday] playing with that mind-set of how I wanted to play in this upcoming season: protecting the ball, playing smart, not taking unnecessary hits, and playing for my teammates. That means more to me now than anything."
Defensive tackle Mike Patterson said he felt "blessed" that the arteriovenous malformation (AVM) that caused a training-camp seizure did not lead to any further problems this season.
"Usually they say once one seizure happens another one can occur, so I feel real blessed," Patterson said.
He took anti-seizure medication and plans to have surgery to remove the AVM - a tangle of blood vessels on his brain - "in the next couple weeks."
