On 25 May 2018, Ouzounidis was appointed as manager of 2017–18 Greek Superleague champions AEK Athens, on a biennial contract, only hours after the departure of Manolo Jiménez from the club.
ˌɔn twˈɛnti fˈaɪv mˈeɪ tˈuː θˈaʊzənd ˈeɪtiːn, ˌuːzaʊnˈɪdiz wʌz ɐpˈɔɪntᵻd æz mˈænɪdʒɚɹ ʌv tˈuː θˈaʊzənd sˈɛvəntˌiːn ˈeɪtiːn ɡɹˈiːk sˈuːpɚlˌiːɡ tʃˈæmpiənz ˌeɪˌiːkˈeɪ ˈæθᵻnz, ˌɔn ɐ baɪˈɛnɪəl kˈɑːntɹækt, ˈoʊnli ˈaʊɚz ˈæftɚ ðə dᵻpˈɑːɹtʃɚɹ ʌv mˈænəlˌoʊ dʒɪmˈeɪnɛz fɹʌmðə klˈʌb.