Linebacker Erin Henderson (concussion) wasn't practicing during the portion of today's practice that was open to reporters. That means he's unlikely to play on Sunday against the Lions. We'll have more from coach Leslie Frazier and the official injury report when practice ends soon.

Henderson hasn't been back on the field since suffering the concussion in Week 2 at Indianapolis. He still needs to pass the league-mandated concussion tests before being allowed to practice or play.

Also not practicing were safeties Andrew Sendejo (ankle) and Mistral Raymond (ankle). Raymond will be out three to five weeks.

Practicing were TE Kyle Rudolph (thigh) and QB Christian Ponder, who was a surprise addition to Thursday's injury report (neck).