Updated

Washington Redskins quarterback Robert Griffin III returned to practice Wednesday after suffering a concussion during Sunday's 24-17 loss to the Atlanta Falcons.

"Felt sharp, I felt good," Griffin said after Wednesday's session. "No symptoms of a concussion or anything like that. No dizziness or off balance or things of that nature. I felt good."

Griffin left the contest in the third quarter after taking a vicious shot from Falcons linebacker Sean Weatherspoon as he scrambled down the sidelines.

The rookie quarterback was diagnosed with a concussion and underwent a flurry of tests from the training staff over the early portion of this week before returning to practice.

"I'm still not cleared by any means for full contact," Griffin admitted. "As a quarterback you don't get hit in practice so I can still go out and practice a little bit."

Griffin's status for Sunday's matchup against the Minnesota Vikings remains uncertain as he must pass tests by team trainers and independent team doctors before being ruled eligible to play under the NFL's new concussion policy.

"For me there's never a doubt as a player," Griffin remarked when asked if he will play Sunday. "You always feel like you'll be ready to go. I continue to get evaluated every day. The only symptom that I do have is irritability because they keep asking me the same questions."

If Griffin can't go on Sunday, fellow rookie quarterback Kirk Cousins, who threw a touchdown pass and a pair of interceptions in place of Griffin against Atlanta, would get the start.