As Chris says, Paul, going by what you described, it's more likely that you may get a community service order and/or a fine too.......heed the advice and try and get some representation for yourself.
It was a silly thing to do, but there's no point in dwelling onit....i used to play football in my younger days and know the impulses you sometimes get in these circumstances.....usually it was just a bit of "handbags", with a drink afterwards to smooth it over, if excepted.
You certainly wont do it again, will you?
I wish you luck, mate, get this behind you, and look after yourself and your family in future.
yogi