When athletes resort to fisticuffs, they usually pay the price with more than just money. A large fine can be annoying, but a suspension or serious injury can decimate a team, whether for a single game or the entire season. We take a look at five of the "costliest" sports fights that have happened over the past few years, and the effect each had on the individual players and their teams. The lesson here? If you want to play sports and fight at the same time, stick to boxing or MMA.