Green Bay point guard Keifer Sykes has no respect for gravity or feelings. And he can fly.

That’s not a good thing for 6-foot-9 forward Kerem Kanter, the younger brother of Utah Jazz standout Enes Kanter. In Tuesday’s practice, Sykes – 6 feet tall on a great day – dunked on Kanter via an alley-oop on the in-bounds pass from teammate Jordan Fouse.

You can see Sykes yelling after the dunk and his teammates walking away from the scene to collect their thoughts.

Warn your friends.