Conor McGregor Announces Retirement From MMA The surprise announcement from the <br />UFC star came via Twitter early <br />Tuesday morning. Conor McGregor, via Twitter Conor McGregor, via Twitter Hours earlier, McGregor told Jimmy Fallon in a pre-taped interview that he was negotiating a potential return to the <br />UFC in July. Conor McGregor, via 'The Tonight Show Starring Jimmy Fallon' McGregor has "retired" via Twitter <br />once before in April 2016. Conor McGregor, via Twitter But UFC president Dana White believes this announcement is legitimate. Dana White, via ESPN Dana White, via ESPN
