Credit Conor McGregor for sticking to who he is.

McGregor, who doesn’t shy away from speaking his mind – likely a reason he has developed such a quick relationship with UFC president Dana White – recently made an interesting post on Twitter in which he calls out nearly every single member of the UFC’s featherweight division.

That includes former UFC lightweight champion Frankie Edgar, one-time contender Chad Mendes, Ricardo Lamas, Clay Guida and others.

Here’s what McGregor had to say:

McGregor is 2-0 in his UFC career, stopping Marcus Brimage and defeating Max Holloway recently via decision. The Irish fighter is expected to be sidelined for at least a short time due to a knee injury suffered in the Holloway fight.