Conor McGregor doesn't seem like the type of person who would go out with a loss, which is why UFC fans were skeptical after McGregor announced his retirement from his verified Twitter account Tuesday.
I have decided to retire young.
— Conor McGregor (@TheNotoriousMMA) April 19, 2016
Thanks for the cheese.
Catch ya's later.
MORE: McGregor's most notorious moments | UFC's best villains
McGregor is was scheduled to fight at UFC 200 in a rematch with Nate Diaz, who made the Irishman tap out at UFC 196 in March. In fact, McGregor, the current UFC featherweight champion, was sharing on social media about his training Monday.
Back in the land of Ice for some good training at Mjolnir!! #TheIceViking pic.twitter.com/zXKy3vN6Qv
— Conor McGregor (@TheNotoriousMMA) April 18, 2016
(UPDATE: The UFC announced Tuesday evening it had pulled McGregor from UFC 200 after McGregor "informed UFC officials that he would not participate in any promotional activities, including a commercial shoot and press conferences.")
(UPDATE 2: UFC president Dana White told ESPN later Tuesday that McGregor's refusal to participate forced his hand. "Obviously we still have a good relationship with Conor," White said. "I respect Conor as a fighter and I like him as a person. But you can't decide not to show up to these things. You have to do it." )
If McGregor really is done, "The Notorious" would finish with a 19-3 professional record, including 15 consecutive wins from February 2011 through his upset loss to Diaz earlier this year.
MUEHLHAUSEN: Retirement would be huge blow to UFC
McGregor's coach, John Kavanagh, also took to Twitter and seemed to confirm the news.
Well was fun while it lasted
— Coach Kavanagh (@John_Kavanagh) April 19, 2016