NBA players take a lot of pride in their abilities. No duh, that is how they become skilled enough to make it to the NBA. Nonetheless, that deep-seated self-confidence is important, which is why players always react when another player calls them out. That’s exactly what happened in Dallas.

Last weekend, on his Twitter account, Mavericks superstar Dirk Nowitzki took some questions from fans. Included in that community outreach was a query as to whether or not Dirk could dunk on Tyson Chandler. Dirk, brimming with esteem, claimed that, yes, he could and had done so two weeks earlier, a specious claim considering Nowitzki has all of five dunks this season and Chandler is one of the finest at-rim defenders this league has to offer.

Ergo, NBA player that he is, Chandler responded to Dirk Nowitzki. And he did so hilariously, first on Twitter, and then to a Dallas radio show called “Ben and Skin.” Here’s his response, courtesy of the Dallas Morning News:

“No, Dirk has never dunked on me in any uniform whether it be a game or practice or anything else. (Not in) a doctor’s uniform, police uniform, nothing. And when I found out about it, I was just getting ready to lay down and take my nap and low and behold, Dirk’s on Twitter saying he dunked on me two weeks ago. I’m looking at this and thinking, ‘Wow, that’s interesting. I don’t remember that.’ So I respond back in my own little funny way. And then I get into the locker room and the big German wants to fight me, over Twitter. He said, ‘Hey, how dare you disrespect me in front of my Tweeples?’

Well, as much as that clears up the whole dunking thing — I will side with Chandler, because this is Dirk we’re talking about here — it raises another very important question: Does Dirk Nowitzki often play basketball in costume? I mean, that’s the only reason Chandler would bring up him in a doctor’s or police uniform.

Knowing what we know about Dirk, I wouldn’t be surprised.