ɐ fˈʊlbˈæk, hˈæslæm plˈeɪd fɔːɹ ɹˈɑːtʃdeɪl æz ɐn ˈæmətʃɚ, bᵻfˌoːɹ mˈuːvɪŋ tʊ ˈoʊldæm æθlˈɛɾɪk ɪn nˈaɪntiːnhˈʌndɹɪd fˈoːɹɾi sˈɪks fˈoːɹɾi sˈɛvən, fɔːɹ hˈuːm hiː mˌeɪd tˈuː lˈiːɡ ɐpˈɪɹənsᵻz.
A full-back, Haslam played for Rochdale as an amateur, before moving to Oldham Athletic in 1946–47, for whom he made two League appearances.