At least 32 class action lawsuits across the country allege Pacquiao should have disclosed a shoulder injury to boxing fans before the fight, which Mayweather won in a unanimous decision after 12 lackluster rounds that most fans thought didn't live up to the hype.

Fight of the century? More like fraud of the century, the lawsuits contend.

"The fight was not great, not entertaining, not electrifying. It was boring, slow and lackluster," according to a lawsuit filed in Texas alleging racketeering, a claim usually reserved for organized crime.

A lawsuit filed on behalf of Flights Beer Bar near LAX airport in California said Pacquiao and his promoter's actions were, "nothing but a cash-grab." The bar paid USD 2,600 to broadcast the fight.

As for that grabbed cash, the fighters are each expected to earn more than USD 100 million, Mayweather more than Pacquiao, and HBO and Showtime broke records raking in more than USD 400 million from 4.4 million paying to watch the pay-per-view broadcast.

Those 4.4 million paid up to USD 100 each to watch the fight, and the lawsuits are seeking their money back.

It isn't as easy as showing a receipt and demanding a refund, though. A federal panel of judges will likely first need to decide if the cases from multiple states and Puerto Rico should be consolidated into one case. From there, a judge would have to decide whether to certify them as class actions or not.

What's sought in each is the same: a jury trial and at least USD 5 million in damages, the threshold for federal class actions.

Representatives for Pacquiao and Top Rank Promotions, HBO and Showtime had no comment to offer on the lawsuits and Mayweather Promotions did not return multiple phone messages.

Exhibit A for most of the lawsuits is a Nevada Athletic Commission medical questionnaire that Pacquiao signed days before the fight. When asked if he had any injuries including to his shoulder he replied "no."

In fact, his shoulder was injured enough to warrant surgery shortly after the fight. Experts in resolving legal disputes doubt disgruntled boxing fans will be able to claim victory.

If a fight is what fans were paying for, the fighters unquestionably delivered, she said. Just because people didn't like the show doesn't mean they get their money back, she said.

Ultimately, the question is, who did Pacquiao have a legal duty to explain his injury to? Weston said. Short answer: He didn't have to tell viewers, Weston said. The only contract viewers had was with their cable companies, which in turn had contracts with HBO and Showtime.

It's not the first time customers have taken their fight to court when things didn't go quite the way they expected in the field of entertainment.

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