[Zyik]

According to Dictionary.com a sport is....

1. Physical activity that is governed by a set of rules or customs and often engaged in competitively.
2. A particular form of this activity.
3.An activity involving physical exertion and skill that is governed by a set of rules or customs and often undertaken competitively.
4.An active pastime; recreation.

FIRST does require activity, even if it is in not quite the same way. Therefore I consider it a sport. After all, in a sport you get close to your team mates, and the same can be said for us.