- Scott Brown, ESPN Pittsburgh Steelers reporter
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PITTSBURGH -- Jarvis Jones took part in what the Steelers called an “exercise challenge” Thursday as the starting outside linebacker tries to work his way back from a concussion that he sustained in the Steelers' 19-6 win over the Jets.
Jones, who was listed as a partial participant in practice, is going through concussion protocol after getting diagnosed with the dreaded head injury. Jones has to pass a battery of tests before he gets cleared to suit up Sunday, but the Steelers are hopeful that he will be able to play in the 4:25 p.m. ET game against the Ravens.
“The medical team will [handle] everything on that, but I’m optimistic,” Steelers defensive coordinator Dick LeBeau said. “He’s pretty good. He has some symptoms of being hit and they watch those things pretty closely.”
Jones told Steelers doctors Monday night that he was dealing with lingering headaches, and that led to the concussion diagnosis Wednesday night. Jones did not practice Wednesday, and Friday will be a critical day for the Steelers’ 2013 first-round pick.
Young players who do not practice on Friday usually do not dress for a Sunday game.
In other injury news, defensive end Brett Keisel (abdomen), outside linebacker LaMarr Woodley (knee) and tight end Heath Miller (coach's decision) were full participants in practice after all were limited in drills on Wednesday.
Starting right tackle Marcus Gilbert (quadricep) was limited in practice for a second consecutive day. Newly signed tight end Richard Gordon (toe) did not practice Thursday putting his availability for Sunday in doubt.