Sunday, Sep 09, 2018 11:29 AM
INDIANAPOLIS — Marlon Mack and Anthony Castonzo were both able to return to the practice field last week after suffering a hamstring injuries about a month ago, but their 2018 regular season debuts will have to wait at least another week. ... Mack suffered a hamstring injury Aug. 9 in the Colts' preseason opener against the Seattle Seahawks, and missed the rest of training camp and the preseason. He was able to return to the practice field on Thursday and Friday as a limited participant, but the team has decided to be cautious for today's game.
https://www.colts.com/news/marlon-mack-anthony-castonzo-will-not-play-against-bengals