Mack (calf) is listed as questionable but is likely to play Sunday against the Falcons, Adam Schefter of ESPN reports. However, the Colts want to test Mack in pregame warmups before a decision on his status is made.
Mack missed practice both Wednesday and Thursday, but was able to return Friday -- albeit in a limited fashion -- offering hope that he'll be able to suit up for Sunday's contest. If he's unable to go or is limited this weekend, Nyheim Hines and Jordan Wilkins would be next up for touches out of the Colts' backfield.