Mack (concussion) took part in Friday's practice, Kevin Bowen of 1070 The Fan Indianapolis reports.
Mack was able to log a full practice Thursday and is getting some work in again Friday, suggesting he's endured no setbacks in his recovery from the concussion. He still has yet to clear the NFL's protocol for head injuries, but the door remains open for him to play Week 13 in Jacksonville. The Colts will reveal Mack's official status for the weekend shortly after practice concludes.