Amaroq

I know that the San Siro situation is correctly handled for the two Milanese clubs.

Does anybody know if that was "special-cased", or does it work for any two clubs?

For example, if I (heretically!) set up Manchester City to ground-share at Old Trafford, would it correctly ensure that only one match was held at Old Trafford on a given day?

Also, how well would it work to set up, say, a Blue Square North side that ground-shared at one of the Premiership grounds?

eXistenZ

I think it is the case for every city with two clubs and only one stadium. The example i'm thinking of is Club Brugge and Cercle Brugge