Here's another potential case. One of my MBA students pointed to potential controversy involving the promoters Top Rank (of Bob Arum fame) and Golden Boy Promotions (founded by Oscar de la Hoya about 10 year ago). The dispute involves the signing of highly-touted Philippine bantamweight champion Nonito Donaire by Golden Boy this week. Reports state that Golden Boy offered Donaire a bigger purse for an upcoming fight for the WBA bantamweight championship. However, Top Rank claimed he is presently under contract and is considering legal action.
The stakes are high because Donaire already won the bantamweight championship of two of boxing's myriad governing bodies last month, the World Boxing Council and World Boxing Organization, raising his profile and market value. Yet, the case is reminiscent of a similar dispute about five years between the same parties of the fate of another Philippine boxer, Manny Pacquiao. That case was settled by arbitration in 2007, although there is subsequent litigation over claims that Top Rank underpaid Pacquiao.
Since both contracts are promising to arrange the same bout, injunction is not a practical remedy. But, just to hypothesize, what is the Golden Boy deal offered a different fight in June? Would Donaire be determined "unique" to stop him from boxing? My guess would be yes -- as a boxing champion and a potential moneymaker.