Eifert was listed as a limited participant in Wednesday's practice due to a concussion.
EDGE Analysis
Coach Doug Marrone confirmed that Eifert is in the concussion protocol, with the tight end presumably having picked up the head injury in last week's loss to the Steelers. James O'Shaughnessy missed that game due to a knee issue, so the Jaguars could be severely lacking at tight end if Eifert isn't able to clear the league's five-step concussion protocol in time to play Sunday against the Browns.