ɪn ɑːktˈoʊbɚ nˈaɪntiːnhˈʌndɹɪd twˈɛnti nˈaɪn, sˈɑːnənbˌɜːɡ wʌz ɐtˈækt ɔnðə stɹˈiːts ʌv lˌɑːs ˈændʒəlɪs baɪ pˈɑːɹttˈaɪm ɹˈɛslɚ pˈiːt lˈædʒɪmi ɪn ɐn ɐtˈɛmpt tʊ ɛkspˈoʊz ðə ɹˈeɪnɪŋ wˈɜːld tʃˈæmpiən æz wˈiːk.
In October 1929, Sonnenberg was attacked on the streets of Los Angeles by part-time wrestler Pete Ladjimi in an attempt to expose the reigning world champion as weak.