Shane Mosley, Floyd Mayweather Test Negative
LAS VEGAS -- A combined 15 random drug tests between Floyd Mayweather and Shane Mosley for blood and urine have all come back clean and free of any banned substances, Nevada State Athletic Commission chairman Keith Kizer said on Wednesday.
The 33-year-old Mayweather (40-0, 25 knockouts) will meet the 38-year-old Mosley (46-5, 39 KOs) here on Saturday night at the MGM Grand, where Kizer was attending a Wednesday press conference involving the fighters.
Mayweather and Mosley are both being randomly drug tested for their bout by the United States Anti-Doping Agency, which marks the first time that any boxing commission has allowed for blood testing for steroids.
Boxing, in general, uses urinalysis testing.
"I know that there were eight tests for Shane, and, seven tests for Floyd. I think that about half of them were for blood and half of them were for urine, and we're getting them directly from USADA," said Kizer, adding that he received the results, "two or three weeks ago."