Mike Foltynewicz threw a slider so nasty it caused his glove to fly off his hand
As far back as his days in the Astros' Minor League system,
Inertia is indeed a powerful force and Foltynewicz's glove proved to not be exempt from its laws. This happened on a slider. Imagine how far the glove may have gone had Foltynewicz thrown a fastball. Players in the Marlins' dugout may have had to take cover.
If he keeps throwing that hard, flying gloves may become a regularly-occurring phenomenon.