Why is a kick from the ground illegal?!

[Captain America]

The shit thing is, the rule was intended for stomps, soccer kicks and knees to the head when a man's pinned on all fours or on his back. So instead of detailing which positions kicks to the head are illegal from, they just said none to a downed opponent.

I can't fucking wait for that rematch in August!

[amiller]

Elbows are legal but up kicks are. Makes little sense.