This was night of horror cuts in UFC!
Well done Sandhagen for deserved win, but Song's face was messed up in this fight, and Gregory Rodrigues face was much worse from fight with Chidi Njokuani.
Dana White shared before and after operation photos and I think you can see Rodrigues bones and brains, but he won this fight

Better watch full main card again if you want to see how this happened.

Hehe those are not brains, that might be a vein or an artery. If his brains were exposed during a fight, it would be stopped and the fighter would be taken quickly to the hospital.
I did not watch this event because I thought it would be quite boring hehe. I was waiting for Canelo vs. GGG 3, however, it appears in that picture that Canelo vs. GGG was the boring event hehehe.