Water polo

Water polo was a team water sport originating on Earth. It combined the skill of swimming with the basic rule sets and strategies of Soccer and Hockey.

The object of the sport was to score as many goals as possible, with each goal being worth one point. It was played in a swimming pool that was deep enough at all points "so that no one can touch the bottom". This naturally forced all players to be in constant motion throughout the match. Players could be temporarily ejected for committing rules violations, or "fouls", thereby giving the opposing team a strategic advantage.