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Although it has a long way to go from viral video to officially sanctioned Olympic sport, groin ball shows some promise. It's played by four people in two teams. One grapples with an opponent while the two remaining players try to strike their opponents in the groin with tennis balls. When one player collapses to the ground in agony, his/her team has lost.
For those of you not athletically inclined, there are fantasy leagues.
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