Fitzgerald Cecilio

Barring any setback in the healing process of his injured right knee, rookie quarterback Robert Griffin III will start against the Philadelphia Eagles Sunday to help the team's playoff push.

According to coach Mike Shanahan, doctors believe Griffin's injury will be healed sufficiently for him to play against the Eagles unless he reinjures himself in practice.

"If there's no setbacks, he should be ready to go," Shanahan said.

Griffin participated fully in Wednesday's and Thursday's practices. He missed last Sunday's win at Cleveland because of a mild sprain of the lateral collateral ligament in his right knee.

"I'm ready to play whenever they want me to play - whether it's this week, next week, a couple weeks," Griffin III said. "Whatever they say goes, so I'll be ready."

Griffin, who wears brace on his right knee for support and protection, told the media Wednesday that any lingering weakness from the injury is gone.

"It didn't feel weak or unstable, so that's good. Today was very encouraging for me and for the doctors - for everybody. I feel really good," he said. "It was exciting to get back out there and practice with everybody - get ready for the game."

In the Redskins' 38-21 win over the Browns, Kirk Cousins led the offense on six scoring drives, finishing 26-for-37 for 329 yards and two touchdowns.

The Redskins' 31-6 victory over the Eagles on Nov. 18 started a five-game winning run that revived their playoff hopes.

Washington is now in a triple-tie with the New York Giants and the Dallas Cowboys with identical 8-6 marks.

Quarterback Returns: Redskins to Start RGIII vs Eagles - NFL 2012 Week 16