Mack (Achilles) has been participating in activities with the Colts during voluntary offseason workouts being held at team headquarters, but he hasn't been seen participating in practice, Stephen Holder of The Athletic reports.
Mack suffered a ruptured right Achilles' tendon in Week 1 last year and missed the remainder of the season. He appears to be on track for the start of training camp, but he's still taking things slowly this spring. If healthy, he'll slot in behind Jonathan Taylor to start the 2021 campaign, leaving him in line to fill a complementary role along with Nyheim Hines and Jordan Wilkins.