Isao Machii is about as close to a modern-day samurai as you can get post-medieval Japan. He's been known to cut all sorts of things in half, ranging from BB gun pellets to arrows. The man has serious skills and would be a huge asset in both accidental time travel and zombie apocalypse scenarios.
With that kind of resume, how do you think he fared when presented with the challenge of cutting a pitch traveling 100 mph in half?
No doubt. Now, let's see him try a knuckleball.