Substitutions soccer international rules

To replace a player with a substitute, the following conditions must be

observed:

* the referee must be informed before any proposed substitution is made * the substitute only enters the fi eld of play after the player being replaced has left and after receiving a signal from the referee * the substitute only enters the fi eld of play at the halfway line and during a stoppage in the match * the substitution is completed when a substitute enters the fi eld of play * from that moment, the substitute becomes a player and the player he has replaced becomes a substituted player * the substituted player takes no further part in the match * all substitutes are subject to the authority and jurisdiction of the referee, whether called upon to play or not Any of the other players may change places with the goalkeeper,

provided that:

* the referee is informed before the change is made * the change is made during a stoppage in the match