UFC president Dana White made an appearance on FOX Sports 1 recently to promote UFC 175. White discussed a number of subjects, including the recent decision to part ways with Chael Sonnen.

“It’s never easy making decisions like this,” White said. “Chael is a person I personally care about; I know a lot of people at FOX care about him too.

The guy had four banned substances in his system. Four banned substances in his system leading up to a fight here in Las Vegas. It’s a tough one. It’s one of those hard decisions you have to make. It was definitely a hard one.”

Sonnen was scheduled to fight this weekend against Vitor Belfort before failing the first of two tests given to him by the Nevada Athletic Commission. He was the co-host of “UFC Tonight” on FS1 opposite Kenny Florian.

White also talked about this possibly being the final time BJ Penn fights, as he takes on Frankie Edgar Sunday. Hear the entire interview with White in the video below: