 In 2012, Olympians Michael Phelps and Ryan Lochte noted that the training sequences in "Rocky IV" inspired them to use a cabin similar to what the resourceful Balboa utilized in the film.Sportscaster Stu Nahan makes his fourth appearance in the series as commentator for the Creed–Drago fight.Warner Wolf replaces Bill Baldwin, who died following filming for "Rocky III", as co-commentator.