Thanks for a great game idea - and replies that have added good ideas for variations and implementation.
I have always used games in class, and am giving a workshop on using and designing games for language learning. I'm so happy to have one more,DIFFERENT game to show the teachers- in fact I am going to get them to play it as part of the workshop. I'm sure the whole school will be playing "soccer" this term.
Will definitely be directing the teachers to this website.
HAve been away from EFL teaching for many years now, still miss it.