Steelers rookie outside linebacker Jarvis Jones diagnosed with a concussion Wednesday has been listed as questionable for the game Sunday at Heinz Field against the Baltimore Ravens.

Jones did not take any repetitions Friday in team drills. Instead he went through a light exercise regimen one of the necessary steps involved for concussed players to be cleared to play.

"We're still taking precautions and going through the steps" Jones said. "We're doing the right thing as far as the process. I'm taking it slow. We still have two more days before Sunday. I'll see what they say."

Jones said this is the first time he has had a concussion. After playing in the 19-6 victory Sunday against the New York Jets Jones said he felt tired when he arrived back in Pittsburgh and fell asleep. When he woke up Monday morning he had a headache. He was examined by doctors Monday and diagnosed with a concussion Wednesday.