UEFA Champions League: Your Running Commentary

The UEFA Champions League group stage kicks off on Tuesday with a trio of high-profile matches, and some favorites to get out of the group stage could find themselves in an early hole as a result.

Barcelona-AC Milan headlines the day's schedule, as Lionel Messi & Co. take on the defending Italian champions in a match that will not feature a link between the two clubs, as former Barcelona and current Milan striker Zlatan Ibrahimovic is out injured.