mə ɡˈaɪɚ stˈɑːɹɾᵻd plˈeɪɪŋ fˈʊtbɔːl æz ɐ sˈɪkstiːnjˈɪɹˈoʊld wɪð wˈɛst hˈæm juːnˈaɪɾᵻd, bᵻfˌoːɹ ɡˌoʊɪŋ ˌɔn tə plˈeɪ fɔːɹ wˈɔlθɐmstˌoʊ ˈævənˌuː, wɪð hˈuːm hiː wˈʌn ðə nˈaɪntiːnhˈʌndɹɪd sˈɪksti wˈʌn ˌɛfˈeɪ ˈæmətʃɚ kˈʌp.
McGuire started playing football as a 16-year-old with West Ham United, before going on to play for Walthamstow Avenue, with whom he won the 1961 FA Amateur Cup.