Since former UFC bantamweight champion T.J. Dillashaw left Team Alpha Male to train with Duane ‘Bang’ Ludwig at Ludwig Martial Arts, and at Elevation Fight Team, there has certainly been no love lost between he and former mentor Urijah Faber.

While promoting his upcoming UFC 199 trilogy fight with Dominick Cruz, Faber event went as far as to say that Dillashaw looks like a “prepubescent little teenager” because “USADA came in”, implying that Dillashaw’s physique changed due to an increase in random out-of-competition drug testing.

That didn’t sit too well with Dillashaw, who fired back during an appearance on SiriusXM Fight Club:

“I think it’s ridiculous. Go and look at all my fight pictures. Look at my last fights, look at my fight weigh-ins. It’s all the same. It’s just something to discredit my name and talk sh*t about. It really pissed me off. You know I haven’t even said anything in the media about it, I’ve just kinda stayed quiet about it. It just really, really kind of pissed me off. It’s a little ridiculous.”

“This has completely caught me off guard. Like I said, I never thought he would be acting this way. It’s very childish actually. Especially for how many people change camps and train other places and do all these things. And it’s not like I’m even doing that. I’m sticking with the coach that he brought in that I hit it off with. It’s just so crazy to me and so childish that he’s acting this way and it’s almost just to get attention in the media. That’s the only thing I can put my finger onto because I’ve never known him to be this kind of guy.”

Dillashaw is currently gearing up for his UFC 200 rematch with Raphael Assuncao, who defeated Dillashaw via split decision back in 2013.