"He didn't do anything in the walkthrough, but he is another player who is doing everything possible. He's typically, in past history, been a quick healer. So we'll see on him as well," said Mornhinweg.
Maclin suffered hamstring and shoulder injuries during Philadelphia's loss to Arizona. He briefly left the game during the first half after taking a hit to the shoulder, then left the game permanently after hurting his hamstring in the fourth quarter.
Mornhinweg said Riley Cooper has taken Maclin's reps during the receiver's absence, but the team will rely on a number of players to step up if Maclin misses Sunday's game.
"[WR] Riley Cooper has taken all the reps there. We'll use everybody: Steve Smith, Jason Avant, and Chad Hall is on the roster now. There is a possibility that he may be up but we don't know that yet," said the coordinator.