The North America 4 has since been replaced by the Americas Rugby Championship as of September 7, 2009.
ðə nˈɔːɹθ ɐmˈɛɹɪkə fˈoːɹ hɐz sˈɪns bˌɪn ɹᵻplˈeɪst baɪ ðɪ ɐmˈɛɹɪkəz ɹˈʌɡbi tʃˈæmpiənʃˌɪp æz ʌv sɛptˈɛmbɚ sˈɛvən, tˈuː θˈaʊzənd nˈaɪn.