Blake Griffin knows Caitlyn Jenner. He dated Kendall Jenner in 2017.

The Pistons star was on the dias for the Comedy Central roast of Alec Baldwin. So was Caitlyn. It's customary for the roasters to also go after each other, and Blake didn't hold back on the artist formally known as Bruce.

"On behalf of the entire NBA and half of the rappers on the Billboard charts, I want to thank you for giving your daughters their daddy issues," Blake joked.

That wasn't all.

"Caitlyn completed her gender reassignment in 2017," Blake roasted. "Finally confirming that no one in that family wants a white d*ck."

If Griffin -- who dabbles in comedy -- wrote that himself, we're impressed. 

The Baldwin roast will air September 15 on Comedy Central.