Mike Shanahan says Robert Griffin III will in all likelihood play Sunday. (John McDonnell/The Washington Post)

The Washington Redskins have officially listed quarterback Robert Griffin III as probable for Sunday’s game against the Philadelphia Eagles, and coach Mike Shanahan on Friday gave the strongest indication of the week that the star rookie would return to action after sitting out last Sunday’s game with a sprained lateral collateral ligament.

“When I say ‘probable,’ there’s a very, very good chance he’s going to play,” Shanahan said following Griffin’s third consecutive day of full participation in practice. “It doesn’t look like there’s any setbacks with him. But if something crazy happened, obviously, we would know before the game. But talking to him after practice, he’s fine.”

Shanahan had maintained all week that Griffin’s clearance to play was up to the team’s doctors as they closely observed the quarterback for any swelling in the knee that he injured two weeks ago against Baltimore.

Shanahan said that he expected to receive official word from the doctors later on Friday, but that in all likelihood, Griffin will play.

“If I put him as probable, it’s 98 percent, so that’s pretty good. I know I’m not a doctor,” Shanahan said with a chuckle, “but he took all the reps today.”

Linebacker London Fletcher (sprained ankle) and linebacker Lorenzo Alexander (shoulder) also are listed as probable, as is center Will Montgomery (sprained MCL).

Shanahan said Fletcher practiced despite a lingering injury that has limited him during practice weeks for much of the second half of the season. Alexander missed practice to attend a funeral, but has improved throughout the week.

Montgomery said that his knee feels “close” to normal and that he doesn’t notice any limitation in his movements.

Listed as questionable are defensive end Stephen Bowen (torn upper left biceps tendon) and right tackle Tyler Polumbus (concussion), who were both limited in practice Friday. Bowen said his range of motion isn’t 100 percent, but that he can play through the injury. He said the strength in the muscle (the problem area being near where his shoulder attaches to the biceps) is improving.

Polumbus will continue to be monitored for concussion symptoms, and without any setbacks should play.