Former UFC fighter Leslie Smith has filed a complaint against the promotion after she was released from her contract last month.
Lucas Middlebrook, Smith's attorney, told ESPN's Brett Okamoto the complaint was filed with the National Labor Relations Board.
Smith set up a GoFundMe page to help with her legal fees as she continues to fight for the rights of professional fighters to unionize, writing:
"I have been one of few UFC fighters to publicly speak in favor of a fighter's union. I also recently launched Project Spearhead, an organization that is currently collecting authorization cards from UFC fighters to file with the National Labor Relations Board.