If you have a bigger squad size e.g. 18 players then split squad into two smaller squads of 9 .
If you have a bigger squad size e.g. 18 players then play 7 v 7 with 2 substitutes .
If you have a bigger squad size e.g. 18 players then split squad into two smaller squads of 9 and play 7 v 7 with 2 substitutes .