Conor McGregor is calling the UFC’s bluff.

McGregor (21-3 MMA, 9-1 UFC), who is still technically the UFC lightweight champion, is expected to be stripped of his title the minute Saturday’s UFC 223 headliner between Khabib Nurmagomedov (25-0 MMA, 9-0 UFC) and Max Holloway (19-3 MMA, 15-3 UFC) begins.

“The Notorious” has already been stripped of one title during his UFC career, as he had the featherweight belt taken away. It’s been more than 500 days since he won lightweight gold with a second-round knockout of Eddie Alvarez at UFC 205 in November 2016, but McGregor has still has yet to defend the belt.

McGregor occupied his time after that fight focusing on an August boxing match against Floyd Mayweather, which he lost by 10th-round TKO. There’s been a growing uproar among fans and fighters for him to get back and defend, but the Irishman is clearly taking his time.

UFC President Dana White said at Wednesday’s UFC 223 pre-fight news conference that McGregor’s tenure as lightweight champ ends on Saturday. The UFC boss said McGregor wants to fight before the end of the year, but to allow him to hold up the belt any longer isn’t fair.

McGregor caught wind of that sentiment, apparently, and in a crude Twitter response, he made his feelings abundantly clear.

“You’s’ll strip me of nothing you’s do nothing (expletives),” he tweeted.

The world will find out who wins the standoff between McGregor and the UFC brass at UFC 223, which takes place at Barclays Center in Brooklyn, N.Y., and airs on pay-per-view following prelims on FS1 and UFC Fight Pass.

For more on UFC 223, check out the UFC Rumors section of the site.