What do you think you know about sliders? Let Tatsuya Imai throw that out the window. The Astros' new starter -- who's back ...

A right-handed pitcher's slider, for pretty much all of baseball history, has moved the same direction. It starts away from a lefty batter and moves toward them. Or it starts in on a righty hitter and ...

Tatsuya Imai, Houston's offseason signing from Japan, doesn't really have a specific way he throws his slider but it unique in MLB.