dˈʊɹɹɪŋ ðɪ ˈoʊ.dʒˈeɪ. sˈɪmpsən sˈɪvəl tɹˈaɪəl, ɡɹˈoʊdən ɐpˈɪɹd æz ɐn ˈɛkspɜːt wˈɪtnəs ænd tˈɛstᵻfˌaɪd ðˌæɾə nˈaɪntiːnhˈʌndɹɪd nˈaɪnti θɹˈiː fˈoʊɾəɡɹˌæf ʌv sˈɪmpsən wˈɛɹɪŋ bɹˈuːnoʊ mˈæɡli ʃˈuːz æɾ ɐn ˌɛnˌɛfˈɛl fˈʊtbɔːl ɡˈeɪm wʌzɐ fˈɔːɹdʒɚɹi.
During the O.J. Simpson civil trial, Groden appeared as an expert witness and testified that a 1993 photograph of Simpson wearing Bruno Magli shoes at an NFL football game was a forgery.