Turner (concussion) didn't participate in Wednesday's practice, John Boyle of the Seahawks' official site reports.
The 23-year-old missed the regular-season finale due to the head injury and has yet to make much meaningful progress through the NFL's concussion protocol. If Turner is unable to gain clearance for Sunday's wild-card matchup with the Eagles, David Moore would likely work as the Seahawks' No. 3 wide receiver.