Pacquiao out 9-12 months with rotator cuff injury.

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Floyd could barely beat Pacquiao

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Manny Pacquiao could face disciplinary action from Nevada boxing officials for failing to disclose a shoulder injury before his fight with Floyd Mayweather Jr.

Nevada Athletic Commission chairman Francisco Aguilar said Monday that the state attorney general's office will look at why Pacquiao checked ''no'' a day before the fight on a commission questionnaire asking if he had a shoulder injury.

''We had no medical information, no MRIs, no documents,'' said Travis Tygart, who heads the USADA. ''It was not an anti-doping issue. The real question is why his camp checked `no' on the disclosure. Either they made a terrible mistake to not follow the rules or they were trying not to give information to the other side. I'm not sure there's a middle ground.''

Tygart said his agency, which was hired by promoters to oversee drug testing for the bout, was contacted April 7 asking about the use of various substances and whether they were allowed under anti-doping rules. He said there was another call 10 days later asking about using a different substance, but that USADA was not told exactly what the treatments were for.

A little more than two hours before the fight, Pacquiao's corner asked Nevada regulators if he could be given a shot of Toradol, an anti-inflammatory. Aguilar denied it, saying the commission had no previous indication there was an injury and could not allow a shot in fairness to the Mayweather camp.

''Our job is to protect the health and safety of fighters and the integrity of the sport,'' Aguilar said. ''We expect our fighters to be forthright.''

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