Conor McGregor is at the heart of bitter dispute as UFC ditch drug testing partners USADA... and new programme will be even tougher after they hire FBI agent who interrogated Saddam Hussain to lead the charge alongside the man who caught Lance Armstrong
He has been out of the USADA testing pool since, but the agency announced he has re-entered. The recent news has sparked real controversy between MMA's biggest promotion and USADA.
