Philippines, 08 Jan 2026
  Home >> News

 


BOXERS

CURRENT CHAMPIONS 

FORMER CHAMPIONS   

RATINGS                       

NEWS           

FORUM        

FIGHT GALLERIES        

RING CARD GIRLS        


 
 
News  


NO DRUG TEST RESULTS AS YET


PhilBoxing.com


Golden Boy Promotions has not yet provided the Nevada State Athletic Comission with any additional details or results of the one random drug test conducted by the US Anti Doping Agency on Floyd Mayweather Jr and Shane Mosley who face-off at the MGM Grand in Las Vegas on May 1.

The executive director of the Nevada State Athletic Commission Keith Kizer informed us last April 5 that Mayweather and Mosley had already been tested by the USADA for any illegal substance.

Kizer told insidesports.ph, Standard Today and Viva Sports that he had been informed by Golden Boy Promotions, promoters of the May 1 showdown that ?both boxers (at that time) had taken at least one test already.?

He said however that there were no details on where or when the tests had been taken even as he responded to our query by saying no test results or additional details have been provided the NSAC as of today.

Kizer told us previously that the USADA test results would be passed on to the Nevada State Athletic Commission. He said ?I have been told they will be.?

At the same time the NSAC executive director disclosed that the Commission ?tested Mr. Mayweather in late December and his test was negative for any prohibited substance.?

The Mayweather-Mosley fight emerged a negotiations for a big money super-fight between reigning pound-for-pound king and ?Fighter of the Decade? Manny Pacquiao and Mayweather Jr fell through on a disagreement over the cutoff date for random drug tests.

Pacquiao agreed to a cut-off date for the random drug tests 24 days before their scheduled fight but Mayweather Jr and his handlers insisted on 14 days resulting in the scuttling of the fight which was expected to generate $40 million in revenues for each fighter.


Click here to view a list of other articles written by Ronnie Nathanielsz.


Recent PhilBoxing.com In-House articles:

  • Canoy banking on his ring experience against Kuse
    By Lito delos Reyes, , Thu, 08 Jan 2026
  • Undefeated Kansas Middleweight Prospect Marco “El Tiburon” Romero finished 2025 with 7th triumphs, all by knockout, & 11-0 record
    , Thu, 08 Jan 2026
  • Kinetix Sports aims for bigger events in 2026
    By Lito delos Reyes, , Thu, 08 Jan 2026
  • 2026 Santa Maria Town Fiesta Chess Challenge on January 26
    By Marlon Bernardino, , Thu, 08 Jan 2026
  • World Ranked Heavyweight Dainier Pero Headlines on Saturday, January 17th at the 2300 Arena in Philadelphia
    , Wed, 07 Jan 2026
  • Jahyae Brown to Battle Arnold Gonzalez in Exciting Co-Feature on Thursday, January 15th at The War Memorial in Trenton, New Jersey
    , Wed, 07 Jan 2026
  • Hendri Cedeno Seeks Monumental Victory Against Alfredo Santiago for NABO Title January 10 at Barclays Center
    , Tue, 06 Jan 2026
  • Kingsley Ibeh learned from his Loss 5 years ago to Jared Anderson
    , Tue, 06 Jan 2026
  • Unified World Cruiserweight Champion Gilberto ‘Zurdo’ Ramirez returning to Corpus Christi…as a promoter!
    , Tue, 06 Jan 2026
  • Ocum to fight Ballesteros on January 26
    By Lito delos Reyes, , Mon, 05 Jan 2026
  • SEA Plus Youth Games - Tolentino
    By Lito delos Reyes, , Mon, 05 Jan 2026
  • 87th Kalilangan Chess Festival Featuring Manny Pacquiao International Open to Push Through
    By Marlon Bernardino, , Mon, 05 Jan 2026
  • Deniega to fight Oka in Japan
    By Lito delos Reyes, , Fri, 02 Jan 2026
  • Illness forces Paddy Donovan to withdraw from IBF Welterweight World Eliminator January 16 versus Liam Paro in Australia
    , Fri, 02 Jan 2026
  • Canadian World Cruiserweight Contender Ryan Rozicki returning to ring March 7th
    , Thu, 01 Jan 2026
  • Lover Boy on hot streak
    By Joaquin Henson, , Wed, 31 Dec 2025
  • Silvano fights Gurung on January 13 in Hong Kong
    By Lito delos Reyes, , Wed, 31 Dec 2025
  • GM Laylo faces tough competition in Caloocan rapid chess
    By Marlon Bernardino, , Wed, 31 Dec 2025
  • GOLDEN BOY DELIVERS A LOADED UNDERCARD OF STAR PROSPECTS FOR ROCHA VS. CURIEL II
    , Wed, 31 Dec 2025
  • Arca wins silver in Eastern Asian Juniors Chess Championships 2025
    By Marlon Bernardino, , Wed, 31 Dec 2025
  • Donaire awaits WBA order
    By Joaquin Henson, , Tue, 30 Dec 2025
  • Anthony Joshua injured in car crash in Nigeria
    By Gabriel F. Cordero, , Tue, 30 Dec 2025
  • Sampson Boxing Signs Red Hot Middleweight Vito Mielnicki Jr to Exclusive Promotional Contract
    , Tue, 30 Dec 2025
  • Undefeated Carl Jammes Martin Plots Next Move as New Year Unfolds
    , Mon, 29 Dec 2025
  • Alvin Gayeta Roma leads Mansa Engineering Consultancy Team B to rule New York Chess Academy Team Tournament; pockets P100,000
    By Marlon Bernardino, , Mon, 29 Dec 2025




  •  



     
    PhilBoxing.com has been created to support every aspiring
    Filipino boxer and the Philippine boxing scene in general.
    Please send comments to feedback@philboxing.com


    PRIVATE POLICY | LEGAL DISCLAIMER
    developed and maintained by dong secuya
    © 2026 philboxing.com.