Concussion Substitutions
This setting applies to all competitions that do not use flying substitutions, with a default value set to 1. It limits the number of concussion substitutions each team can make in a single match within that competition.
According to the rules, if one team makes a concussion substitution, the opposing team is allowed one additional substitution. Both concussion and additional substitutions do not count towards the total number of substitution opportunities.
Substitution events are now categorized into three sub-types:
Normal
Concussion
Additional