Follow boxing long enough and you come to scoff at the label “Theater of the unexpected” as a descriptor for the sport. Indeed, we all come to know that the bizarre, the novel, the strange turn is the norm for the Sweet Science. To have a promotion go smoothly, with no apparent kinks, with no strange digressions or pit stops…THAT would be unexpected.

And so it is with the Floyd Mayweather Jr.-Manny Pacquiao promotion, which ended, nominally, on Sunday morning…but in reality, is still chugging along, dropping into potholes, steering around obstacles popping up left, right and center.

Such as…

A class-action lawsuit has been formed and announced by parties who say they feel they were defrauded Saturday night. Las Vegas-based attorney Brendan McDonald, on behalf of Stephane Vanel and Kami Rahbaran, filed a suit in district court in Vegas against Manny Pacquiao, promoter Top Rank Promotions, adviser Michael Koncz and some John Does (others to be specified later).

They seek “damages against defendants” for allegedly not disclosing “injuries” suffered by “Pacman” prior to his May 2 clash. The plaintiffs and as yet unnamed others – which could number more than 100 persons – who may be joining the party seek financial restitution to the tune of “more than five million dollars.”

Attorney Daniel Petrocelli is heading up the defense; he told the LA Times yesterday that he expects the suit to be dismissed.

“It claims Pacquiao was injured [immediately] before the bout and that’s not true – he was injured [nearly a month] before the bout, was examined by doctors and cleared to fight,” Petrocelli told Lance Pugmire. “And he was examined by the commission right before he fought.”

I checked in with friend of boxing, Keith Sullivan, a New York-based attorney who regularly appears on FOX News and MSNBC to dispense legal wisdom. I wanted his take on the suit and its merit.

“It’s an impossible climb legally,” said Sullivan, a member of the New York State Athletic Commission, in addition to running a practice with partner James Galleshaw. The parties received what they paid for, a boxing match, he said. “It’s known in sports that athletes are often not 100 percent and no one ever guarantees that they are 100 percent.” Sullivan didn’t care for the quality of the match and understands the stand being taken but he also said that while courts might entertain the suit for a spell, “on judgment day, it’s going to get tossed out.”