Carolina Panthers right guard Trai Turner remains in the concussion protocol and will miss his third consecutive game Sunday when Carolina takes on Atlanta in a regular-season finale with important playoff implications. Turner, a two-time Pro Bowler, practiced on a limited basis all week and was listed as questionable in Friday’s injury report. But the Panthers announced Saturday that Turner was still in the concussion protocol. Presumably that means Turner was not cleared by the independent neurologist, the final step in the protocol before a player returns to game action. Versatile lineman Amini Silatolu is expected to replace Turner again against the Falcons.