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Middleweight prospect J'Leon Love failed a drug test following his controversial 10-round unanimous decision win against Gabriel Rosado on May 4.

Some news and notes from the boxing world: • Nevada State Athletic Commission executive director Keith Kizer said Thursday that the post-fight drug tests for Floyd Mayweather Jr., Robert Guerrero, Abner Mares and Daniel Ponce De Leon al...

The main event of Golden Boy Promotions' Fox Sports Net/Fox Deportes card Friday night was canceled Thursday when Jose Aguiniga passed out while trying to make the 130-pound weight limit.

Gabriel Gonzaga will file an official complaint with the Nevada State Athletic Commission after his controversial knockout against Travis Browne on Saturday. More »...

Floyd Mayweather Jr. was formally licensed by the Nevada State Athletic Commission at its monthly meeting on Monday.

Lightweight Mickey Bey Jr. was suspended and fined by the Nevada State Athletic Commission on Wednesday for testing positive for elevated levels of testosterone following a third-round knockout of Robert Rodriguez in a nationally televised fight on Feb. 2

Julio Cesar Chavez Jr. says he doesn't have a drug or alchohol addiction and is set to return to the ring in June after serving his suspension for a failed anti-doping test in September 2012.

Julio Cesar Chavez Jr. was suspended for nine months and fined a whopping $900,000 by the Nevada State Athletic Commission on Thursday for failing a drug test following his loss to champion Sergio Martinez last fall in Las Vegas.

Unbeaten lightweight Mickey Bey Jr., who knocked out Robert Rodriguez in a nationally televised bout earlier this month, has tested positive for elevated levels of testosterone, the Nevada State Athletic Commission said Tuesday.

The Nevada State Athletic Commission will decide the fate of Julio Cesar Chavez Jr. in late February.

The Nevada State Athletic Commission voted unanimously Tuesday in favor of licensing UFC heavyweight Alistair Overeem for a scheduled bout against Antonio Silva on Feb. 2.

The Nevada State Athletic Commission announced on Friday that welterweights Manny Pacquiao and Juan Manuel Marquez both tested negative for any banned substances in the drug tests they were administered in conjunction with their fourth fight last Saturday

Saying "I am a clean fighter," boxer Juan Manuel Marquez on Monday predicted his drug tests from the Nevada State Athletic Commission will come back negative, according to a report.

LAS VEGAS - The contracts have been submitted to the Nevada State Athletic Commission so the purses are official for the Manny Pacquiao-Juan Manuel Marquez IV card on Saturday night (HBO PPV, 9 ET, $59.95) at the MGM Grand Garden Arena. Pacquiao's...

The Nevada State Athletic Commission approved a promoters license for rapper 50 Cent.

Heavyweights Shane Carwin and Roy Nelson have passed prefight drug tests for their Dec. 15 bout, Nevada State Athletic Commission executive director Keith Kizer said Friday.