(File image) Floyd Mayweather

Las Vegas - Floyd Mayweather Junior and Manny Pacquiao have reached a confidential settlement in their federal defamation case in Las Vegas.

It's not clear if the settlement means Mayweather and Pacquiao will meet in the ring.

Malcolm LaVergne, a lawyer who represents Mayweather's father in the case, told The Associated Press on Tuesday that documents have been signed and will be filed in the United States District Court in Las Vegas.

He says terms are strictly confidential.

Pacquiao filed the lawsuit in December 2009. He alleges Mayweather defamed him by suggesting he used performance-enhancing substances.

Pacquiao denied the claim and sought unspecified damages.

The 33-year-old Pacquiao is 54-4 with two draws. He is due to fight Juan Manuel Marquez in December in Las Vegas.

Mayweather is 35. He is undefeated in 43 fights. - Sapa-AP