Machida probably needs to stop fighting now. It's amazing how older fighters carry on when it's clearly detrimental to their health. I suppose it's the love of the game but there needs to be some sort advisory body set up to tell these guys when to stop.
I think most of them still underestimate the effects of getting repeatedly hit in the head. I suppose CTE is relatively new.
Also: Colby Covington, bit of a dickhead isn't he? No takedown, no win for Maia.