Hafoin manan Australia Open (AO) 2019, iha sabadu, 26.01.2019, Naomi Osaka husi Japaun, manan Petra Kvitova,husi Czeck Republic, iha Rod Laver arena, Melbourne Park, Australia. Tama ba kompetisaun AO 2019, Naomi Osaka, tenista nacionalidade Japaun ne´e, okupa numuru 4 rangkin mundial (WTP) nian. Hafoin manan AO 2019, muda posisau tolu (3) husi 4 ba 1
