Retired UFC fighter BJ Penn was hoping to step back in the octagon soon.  But a former writer on his website BJPenn.com has put that on hold with some pretty damning allegations against him.

The writer's name is Pedro Alex Carrasco and according to the tweet below, that was posted on Bloody Elbow, Penn sexually assaulted his girlfriend and is a cocaine addict.

I mean... pic.twitter.com/MvYDmnKWCT

— My name is Matt Roth (@MattRoth512) February 16, 2016

These are pretty serious accusations.  No wonder the UFC has postponed Penn's return.