Mark Jackson & Mallory Ervin are Team Kentucky on the second all-star season of The Amazing Race. As the fan favorites from The Amazing Race 20, Bopper & Mark were a natural selection to return for All-Stars, but Bopper was deemed unfit to compete due to an inflamed pancreas. Mark was given the option to run the Race, and Mallory of Gary & Mallory from The Amazing Race 17 and the Unfinished Business edition was asked to replace Bopper.