BJ Penn’s road out of retirement keeps getting longer and longer. After allegations of sexual assault pushed back his initial return, the multi-divisional champion is facing another hurdle.  It was announced on Monday that the former welterweight and lightweight champion has been removed from the upcoming UFC 199 event to a violation of the U.S. Anti-Doping Agency policy.

Penn had disclosed to the USADA that he was using an IV during his training which is a violation of their policy even though it was “out of competition” it is still a violation and Penn has been handed a provisional suspension.

Penn’s removal was announced by the UFC on their official website.

“The UFC organization was notified today that the U.S. Anti-Doping Agency (USADA) informed BJ Penn of a potential Anti-Doping Policy violation. Penn disclosed the usage of a prohibited method – the use of an IV in excess of 50 ML in a six-hour period – during a March 25, 2016, out-of-competition sample collection. In accordance with the UFC Anti-Doping Policy, Penn has received a provisional suspension, and has been removed from his scheduled bout against Cole Miller on June 4 in Los Angeles.

“UFC will announce a replacement opponent for Miller shortly, and additional information will be provided by USADA and UFC at the appropriate time as the process involving Penn moves forward.”

UFC 199 is scheduled for June 4th in Los Angeles. Penn was set of face Cole Miller after his initial opponent, Dennis Siver, was forced out due to an injury.