3 in all professional leagues, and in the us the youth and high school there are unlimited. not sure about the ncaa rules tho
This depends on the sport being played - which the questioner has not specified.
Germany.
If done properly there are no disadvantages.
A blood bin is a temporary substitution in a rugby match for a player who is visibly bleeding to receive first-aid treatment.
Font substitution is when one font is used in place of another. This is typically done when the original font is unavailable or does not contain glyphs for the required characters. Adobe Reader, Microsoft Word, OpenOffice, and most recent browsers are capable of performing font substitution.
Substitution can occur in a great many different situations. Substitution usually occurs when someone is scheduled to teach for example and becomes sick.
In volleyball, substitution occurs when a player leaves the game and is replaced by another player. Substitutions can only be made when the ball is out of play and with the referee's permission. This allows teams to make strategic changes to their lineup during a match.
Resource substitution is the process of replacing one resource with another in order to achieve the same outcome. This can be done to improve efficiency, reduce costs, or address supply chain disruptions. Organizations often consider resource substitution as a strategic option to enhance their operations.
work_done = force x distance In igniting a match a force is applied to push the match a distance along the box, thus work is done.
Pause the match, tap team management, tap starting 11, then move the player to the subs.
substitution menthod
nine players main and 3players substitution