The promoter for Manny Pacquiao and Timothy Bradley is asking Nevada officials for a full investigation into the controversial scoring of their championship fight in Las Vegas last weekend.
Top Rank CEO Bob Arum says he submitted a formal request for an inquiry to the Nevada attorney general's office on Monday.
Bradley took the welterweight title from defending champion Pacquiao on Saturday, ending the Filipino fighter's remarkable seven-year unbeaten run.
Bradley won 115-113 on two scorecards, while losing by the same margin on the third. The decision was roundly booed by the crowd at the MGM Grand.
Arum says the only way to restore fans' confidence in boxing is to have an independent investigation.
The attorney general's office did not immediately return a message seeking comment on Tuesday.