Australia captain Aaron Finch won the toss and opted to bat first against Sri Lanka in the 3rd ODI being played at R. Premadasa Stadium. 

Sri Lanka (Playing XI): Pathum Nissanka, Niroshan Dickwella(w), Kusal Mendis, Dhananjaya de Silva, Charith Asalanka, Dasun Shanaka(c), Chamika Karunaratne, Dunith Wellalage, Jeffrey Vandersay, Dushmantha Chameera, Maheesh Theekshana

Australia (Playing XI): David Warner, Aaron Finch(c), Mitchell Marsh, Marnus Labuschagne, Travis Head, Alex Carey(w), Glenn Maxwell, Cameron Green, Jhye Richardson, Matthew Kuhnemann, Josh Hazlewood