The World Boxing Organization welterweight title will now go to Timothy Bradley Jr., who had been named the interim title holder after he won a June 27 fight.
The two plaintiffs are suing under laws meant to protect consumers. Pacquiao lost the highest-grossing boxing match in history to Floyd Mayweather Jr. It was later revealed he had a shoulder injury.
As some boxing fans await a major welterweight matchup on Saturday, it's clear that the sport is struggling to keep the attention on the boxers' athleticism rather than their riches.