Participating teams have to register squads for each edition of the World Cup, which consisted of 22 players until 1998 and of 23 players from 2002 onwards. Since 1978, winners' medals are given to all members of the winning squads. Prior to that, only players who were on the pitch during the final matches (or the "de facto" final in 1950) received medals. FIFA decided in 2007 to retroactively award winners' medals to all members of the winning squads between 1930 and 1974.