ðɪs wʌzðə fˈɜːst wˈɜːld kˈʌp wˌɛɹ ðə plˈeɪɚz dʒˈɜːsiz fˈiːtʃɚd bˈæk nˈʌmbɚz ɐlˈaʊd ɪn fˈʊtbɔːl sˈɪns nˈaɪntiːnhˈʌndɹɪd fˈoːɹɾi fˈoːɹ, ðˌoʊ nˈoʊ tˈiːmz hæd fˈɪkst nˈʌmbɚz fɔːɹ ˈiːtʃ plˈeɪɚ.
This was the first World Cup where the players' jerseys featured back numbers (allowed in football since 1944), though no teams had fixed numbers for each player.