Stupid Dream

I had a weird dream recently, and it got to me, big time. The dream was about me watching football on the TV. Suddenly, for whatever reason, one of the players got sliced in half, straight across his mid-riff. I put a hand up to my face, and I remember saying I couldn't watch, but through my fingers I saw the top half of the body clawing himself away toward the middle of the pitch, while the bottom half was being pulled off the pitch by the ref holding his legs. Even stranger was the TV commentator, talking about it being a game of 2 halves. Screwed up my sleep pattern for hours. Can anyone explain this?