Colts head coach Shane Steichen confirmed Wednesday that Pittman (shoulder) remains in concussion protocol, George Bremer of The Anderson Herald Bulletin reports.
Steichen added that Pittman is "progressing well," but the coach had similar sentiments heading into the Colts' previous game before the wideout's symptoms resurfaced Saturday and forced him to sit out a 29-10 Week loss to the Falcons. Pittman will have to clear the five-step protocol to have a chance to play Sunday against the Raiders in a pivotal game for the 8-7 Colts' playoff hopes.