ˈæftɚ ɹᵻtˈaɪɚmənt, jˌæmɐɡˈʌtʃi bɪkˌeɪm ɐ mˈænɪdʒɚ fɔːɹ jˌɑːkoʊhˈɑːmə ˌɛfsˈiː æz jˌæsaɪˈuːki kɪʃˈiːnoʊ səksˈɛsɚɹ ɪn mˈɑːɹtʃ tˈuː θˈaʊzənd twˈɛlv.
After retirement, Yamaguchi became a manager for Yokohama FC as Yasuyuki Kishino successor in March 2012.