Jon Jones 'B' sample has come back positive for the steroid Turinabol.
Jones is now facing up to a four-year suspension from USADA, since he is a repeat offender.
The disciplinary process with USADA will now begin.
A hearing in front of the California State Athletic Commission (CSAC), which also has jurisdiction in the case, is currently in line to be Oct. 17 in Los Angeles, but that could change.
Conor McGregor was guaranteed ($30 million and Mayweather guaranteed ($100 Million) for the fight purse alone, minus the pay-per-view, promotion, sponsorship and gate revenue. WITH the PPV buys and Sponsorship McGregor is estimated to make $123 million and Mayweather $350 million.