A major reason for Agassi leaving Nike was because Nike refused to donate to Agassi's charities, and Adidas did.
ɐ mˈeɪdʒɚ ɹˈiːzən fɔːɹ ˈæɡæsi lˈiːvɪŋ nˈaɪk wʌz bɪkˈʌz nˈaɪk ɹᵻfjˈuːzd tə doʊnˈeɪt tʊ ˈæɡæsiz tʃˈæɹᵻɾiz, ænd ˈædɪdəz dˈɪd.