Assistant referee (association football)
In higher-level games, there's also a fourth official who handles administrative tasks like managing substitutions and stays near the teams' technical areas.If an official can't continue, there are procedures to replace them, with the fourth official often stepping in. Sometimes, there are reserve assistant referees on standby. In very high-level matches, there may be more assistant referees, including those watching incidents near the goals. Video assistant referees can review game footage and advise the referee on decisions that might be incorrect.