ɪn mˈɑːɹtʃ nˈaɪntiːnhˈʌndɹɪd ˈeɪɾi ˈeɪt sˈiːnjɚ sˈaɪnd fɔːɹ mˈɪdəlsbɹə ˌɔn tɹˈænsfɜː dˈɛdlaɪn dˈeɪ fɚɹə fˈiː ʌv pˈaʊnd tˈuːhˈʌndɹɪd,zˈiəɹoʊzˈiəɹoʊ zˈiəɹoʊ fɹʌm wˈɑːtfɚd, wˌɛɹ hiː hæd mˈuːvd ɪn dʒuːlˈaɪ nˈaɪntiːnhˈʌndɹɪd ˈeɪɾi sˈɛvən.
In March 1988 Senior signed for Middlesbrough on transfer deadline day for a fee of £200,000 from Watford, where he had moved in July 1987.