Funny story: I did use Air Bud (kind of) in an argument about rules design. http://eddyfate.com/2012/04/05/impli...r-bud-defense/

​But more to the point -- Heavy Arms is right. The setting doesn't have sports per se, but I could definitely see a kind of "olympics" between dog and cat competitors, or a "highland games" between dog families. It's a cool idea!