ðɪs ɪz ɐpˈæɹəntli ðə kˈɔːz fɚɹə "vˈɛɹi stɹˈeɪndʒ ɪnskɹˈɪpʃən, fˈaʊnd ˌɔn ɐ lˈɑːɹdʒ mˈɑːɹbəl tˈæblət ˈɛkskəvˌeɪɾᵻd ɪnðə sˈɪkstiːnθ sˈɛntʃɚɹi æt sənt. pˈiːɾɚz ɪn ɹˈoʊm" wˌɪtʃ ɐlˈuːdz tə ðɪs ɐtʃˈiːvmənt wˌaɪl sˈɛləbɹˌeɪɾɪŋ hɪz skˈɪl "plˈeɪɪŋ wɪð ɐ ɡlˈæs bˈɔːl".
This is apparently the cause for a "very strange inscription, found on a large marble tablet excavated in the sixteenth century at St. Peter's in Rome" which alludes to this achievement while celebrating his skill "playing with a glass ball".