I have got to start writing these things down

I had an idea like this a couple years ago. Zero-gravity football. Somebody has got to remember. Mine was somewhat more true to the "one-gravity" football currently played, and basically just involved having two identical fields facing eachother, like a floor and a ceiling, separated by 4 feet or so. Also, mine was designed for people traveling between planets, while this one seems to be designed for rich people with too much free time on their hands. Also, mine didn't get published.