Argentina defied convention by numbering their squads for the 1978, 1982 and 1986 World Cups alphabetically, resulting in outfield players (not goalkeepers) wearing the number 1 shirt (although Diego Maradona was given an out-of-sequence number 10 in both 1982 and 1986 while Mario Kempes in 1982 and Jorge Valdano in 1986 were allowed to use number 11).[30] In 1974 Argentina also used the alphabetical system, but only to line players and goalkeepers Daniel Carnevali and Ubaldo Fillol wore traditional goalkeeping numbers 1 and 12 respectively.