Ask some weak questions about the rules of football match.

1, the goalkeeper is sent off, and the team can change people (one of 10 people on the field is replaced by a goalkeeper) or not (find one of 10 people on the field as a goalkeeper). There must be a goalkeeper, and it must be declared and dressed as a goalkeeper.

Note: Substitutes can only be on the substitute list. The reserve list of the World Cup is different from that of the league. All players except 1 1 can play 12. So is the goalkeeper. Three goalkeepers are required when signing up for the World Cup.

2. Absolutely count. Suspension is suspension, and it has nothing to do with whether you are injured or not.

3. If all the above are the same, draw lots to decide the ranking of the two groups.

4-( 1), no, no substitution, not even the goalkeeper (injured red card).

4-(2), no, injury is your own business, not to mention injury, even if it is sudden death, substitution means only three substitutions.