|Perl: the Markov chain saw|
Geeks don't do sports or sports fanism.
I still use the definition of geek as it related to the distinction between nerds and dorks that I learned back in high school.
A dork is a social outcast. They lack all physical and social grace. While they may enjoy D&D, they have no exceptional intelligence. They are awkward in every way.
Nerds are also socially and physically inept. The distinction, a nerd has a well above average intelligence.
A geek is someone that you could sit next to at a bar and have no idea that they are a rocket scientist. They may not excel at sports or in the art of eloquent speech, but they don't stand out enough to initiate ridicule.
I tend to find the profile of J Random Hacker quite accurate and would point to Physical Activity And Sports. It has been several years since I did anything resembling physical activity - but long distance running used to be my sport of choice.
Cheers - L~R