What did he mean by this?

Billiards players aren’t exactly known for being tough. To be fair, they’re mostly not known in the first place, but when they are, it’s more often due to their ability to clear a table rather than their stamina or strength.

As many lack in obvious physical power, professional players must find other ways to intimidate their opponents. For this guy, that meant killing a fly, holding it up for the cameras, and then eating it. Nothing like a little extra protein to get you through the game!