ɹᵻmˈeɪnɪŋ ɪn pˈoːɹtʃəɡəl, mˈæɾɪəs ðˈɛn ɹˌɛpɹᵻzˈɛntᵻd θˈɜːdtˈɪɹ jˈuː.dˈiː. lˈɛɹiə ænd ˈæmətʃɚz ˈɛf.sˈiː. mˈeɪə lˈɪdɐdˌoːɹ ɪnðə pˈoːɹɾoʊ fˈʊtbɔːl ɐsˌoʊsɪˈeɪʃən.
Remaining in Portugal, Mateus then represented third-tier U.D. Leiria and amateurs F.C. Maia Lidador in the Porto Football Association.