Lyoto Machida was once the best light-heavyweight in the world, and it was due in part to his mastery of karate, which enabled him to knock people’s heads off.

But the years have taken their toll. Now, he’s lucky if he can last a minute before getting knocked out.

More from Caged Insider

Case in point: His return to the Octagon in October after taking all of 2016 off thanks to a USADA suspension. Machida took on Derek Brunson in Brazil, and, well, it ended ugly. Real ugly.

But the Brazilian apparently has no qualms about getting back into that cage as soon as people. Machida, you see, wants to master that chronic traumatic encephalopathy-style of karate. You know, the one where you can’t remember your own name because of all the blows you’ve sustained to your head?

As per MMAFighting: