UFC interim lightweight champ Tony Ferguson says he's not worried about Conor McGregor's championship status ... promising he'll destroy "McNuggets" after beating Khabib Nurmagomedov.
Tony and Khabib faced off at the UFC 222 & 223 news conference in Boston -- where Khabib promised to break Tony's arm when they face off in the Octagon on April 7.
Dana White was asked several times if he will be stripping Conor of the lightweight title he won by defeating Eddie Alvarez at UFC 205 ... but White isn't saying.
Tony and Khabib don't seem to care too much -- winner gets Conor and a huuuuuuge payday.