Pittman (concussion/shoulder) was listed as a limited participant on Wednesday's practice estimate.
Pittman remains in the NFL's five-step concussion protocol and will likely need to upgrade to full participation either Thursday or Friday in addition to gaining clearance from an independent neurologist to have a chance at playing in Sunday's game against the Raiders. Still, limited participation in Wednesday's walk-through is certainly better than a no-show for the Colts' No. 1 receiver, who passed concussion protocol last Friday but sat out Sunday's loss to the Falcons after his symptoms resurfaced Saturday.