There can be a lot of darkness in sports, like the 1974 Munich Olympics or the OJ Simpson case. But are the sports themselves all that grim? Football in all its forms can produce some nasty injuries, and combat sports range from fully approved big leagues to illegal anything-goes brawls. Yet the days of Aztec Ball Sport teams getting sacrificed for losing, or dead men winning the Ancient Greek games on a technicality, have been left in the past.