UFC superstar Conor McGregor is done-done. The MMA bad boy has announced a shocking, unexpected retirement from the sport.

Early Tuesday, McGregor went to Twitter to break the news to fans.

UFC president Dana White has since released a statement and co-signed McGregor’s career-ending decision.

The headline-generating announcement has sparked mixed reactions from social media.

Back in 2016, Conor appeared to also bow out of the UFC with a retirement-type statement.

This isn’t the first time McGregor has announced his retirement on Twitter, which has many wondering just how serious this announcement is. The first time was back in 2016 when he thanked everyone for the cheese. McGregor, who lost his last fight to Khabib Nurmagomedov, has been wanting the UFC to give him a part of the company so this could all just be a negotiating ploy to make that happen. (USA Today)