What a bunch of dummies.
I mean fer chrissakes!

Just drill holes in the sides of their heads (use those ear ring holes for a template) and mount cans of whipped cream that expel their contents directly into the "defenseless" player's skull upon a "vicious" impact. No space in head = no brain bouncing around in there.

Recharge each player's helmet as necessary (or desired).

Added benefit.....

When a team loses......you could say.....













......wait for it.....
















THEY GOT WHIPPED!!!



edit: I just had to add........