User blog comment:Sprinklemist/Main Story Six (and some other) Announcements. Opinions Wanted!/@comment-1398015-20110111182653/@comment-1874924-20110112054840

Also, just because the challenges have an athletic theme, that doesn't mean that they'll merely be games from different sports (although some could be, especiall the early challenges when both teams still have a lot of players). Challenges could also be merely sports-based, like in canon TDA's "sports movie" episode.