After missing one game with a knee injury, Washington Redskins quarterback Robert Griffin III was able to practice Wednesday but still has not been cleared to play, the team said. The practice was an encouraging sign that Griffin will start for the Redskins when they visit the Eagles on Sunday.

"Hopefully, there's no setbacks and he keeps on improving and doctors OK him," coach Mike Shanahan said in a conference call with reporters.

Shanahan said doctors still must clear Griffin. They'll pay attention to whether the knee swells up after a day of practice, or whether Griffin cannot put pressure on the knee.

"They'll evaluate it and see if it's in his best interests to go out and play," Shanahan said. "If they feel there might be some swelling, they obviously won't OK it."

Rookie Kirk Cousins filled in for Griffin on Sunday and led the Redskins to a 38-21 win over the Cleveland Browns. The Eagles are preparing for Griffin and Cousins.

"Whether it's [Griffin] or Cousins, it really doesn't matter as far as preparation goes," coach Andy Reid said. "They run the option a little more with [Griffin] than they do with Kirk, but their pass game really remains the same."

Contact Zach Berman at zberman@phillynews.com. Follow on Twitter @ZBerm.