Discussions about performance-enhancing drugs in MMA are arguably at an all-time high, but UFC featherweight Conor McGregor has a hard time getting worked up about it.

As 145-pound kingpin Jose Aldo and No. 1 contender Chad Mendes hurl PED accusations at one another in the fallout of their postponed championship fight, McGregor (13-2 MMA, 2-0 UFC) remains focused on his own career, which will next see him meet Diego Brandao (18-9 MMA, 4-2 UFC) in the main event of UFC Fight Night 46 this Saturday from Dublin’s The O2. The entire event streams on UFC Fight Pass, the UFC’s online digital network.

“I don’t really care about that stupid s–t,” McGregor told MMAjunkie when asked about his stance on PEDs. “I’m just doing my thing. I’m just performing and getting better. I don’t care what anyone else does.”

Regardless of his stance on PEDs, the fact remains several high-profile fighters have been flagged for cheating in recent months. In the past couple week’s alone, former UFC title challengers Chael Sonnen and Ali Bagautinov have tested positive for EPO, a drug many have suspected to be ramped in the sport, but few have officially been caught abusing.

As a self-proclaimed clean athlete, McGregor says his opponents are free to take any substances they desire. From his perspective, no matter how anyone steps in the octagon – dirty or clean – McGregor has the utmost confidence his skills will reign supreme.

“Take whatever you want,” McGregor said. “I’m still going to whoop your a–.”

For more on UFC Fight Night 46, check out the UFC Rumors section of the site.