i remember when i got my concussion. years ago. i was getting off the school bus and my friend had a hardened clay ball he made or something in art class.
im serious when i say this. he chucked the ball in the air just for the hell of it, as high as he could and the clay ball nailed me right in the head as i was walking home.
i remember i didnt feel anything, but my head was making these sort of sounds where you can't find a clear channel on tv, that electronic kind of sound.
and that was mild i found out after the cat scan. now im trying to imagine myself running up and down the court during my concussion and i can tell you now nobody is playing with a concussion. no sport. its impossible.