Dana White claims he has 'no idea' if Conor McGregor's fight with Dustin Poirier will be for the now vacant lightweight belt.
Long-time lightweight title holder Khabib Nurmagomedov announced his retirement from MMA after beating Justin Gaethje at UFC 254 on Saturday night.
An emotional Nurmagomedov, whose father died earlier this year, said after the fight: "Today I want to say this is my last fight. No way am I coming here without my father. When UFC comes to me about Justin I spoke with my mother for three days. She didn't want me to fight without father. And I said this is my last fight and I have given her my word.
"There is only one thing I want from UFC, to put me as No 1 pound-for-pound fighter in UFC, greatest in world. I think I deserve. I want to say thank you Dana, Fertita brothers.
"Thank you so much Justin. I know you are great, I know how you take care of your people. Be close with your parents, because you never know what is going to happen tomorrow. Thank you coach, thank you guys. Today is my last fight in the UFC.

"It was my father's dream. Dustin [Poirier] and Conor [McGregor] will fight in January, I have choked both out, I am not interested in this."
The Russian's retirement led to speculation that McGregor and Poirier could fight for the vacant belt on January 23, but the UFC President wouldn't be drawn on the speculation.
White said: "I don’t know. Yeah, I have no idea.
"Guys, don’t ask me about the future or what the f***’s going on with anything else because I have no idea.
"I’ve been here for five weeks, man, getting through this s***** ass year and I’m just ready to f***ing go home and we’ll figure out what’s next. As soon as we have answers, you’ll know."