Chess Boxing anyone?

As I watch what has become my generations "Good Morning America", Sportscenter, I see something that for sure shouldn't go together, but has. Chess and Boxing. I guess now you can't say that these guys aren't total idiots. They box for 3 mins, take a 1 min break, play speed chess for 4 mins, then another min break, then back to boxing. Crazy. I don't even know how to play chess. Maybe I should learn... Cahill out...