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Sri Lanka won the toss for the third time in the series and again chose to bowl in the final Twenty20 international against Australia in Adelaide on Wednesday.
Australia, with their leading stars in India for this week's Test series, brought back leg-spinner Adam Zampa for paceman Andrew Tye in their only change after a second last-ball loss in Geelong on Sunday.
Sri Lanka made one change, with seam-bowling all-rounder Dasun Shanaka replacing suspended wicketkeeper-batsman Niroshan Dickwella.
Kusal Mendis will keep wicket for the tourists.
Australia: Aaron Finch (capt), Michael Klinger, Ben Dunk, Travis Head, Moises Henriques, Ashton Turner, Tim Paine, James Faulkner, Pat Cummins, Jhye Richardson, Adam Zampa
Sri Lanka: Upul Tharanga (capt), Dilshan Munaweera, Kusal Mendis, Asela Gunaratne, Dasun Shanaka, Milinda Siriwardana, Chamara Kapugedera, Seekkugge Prasanna, Lasith Malinga, Nuwan Kulasekara, Vikum Sanjaya
Umpires: Mick Martell (AUS), Paul Wilson (AUS)
Third umpire: Simon Fry (AUS)
Match referee: Jeff Crowe (NZL)
With inputs from AFP