Ireland's women were beaten in the first of their back to back T20 Internationals with Sri Lanka.
The hosts at Sydney Parade set a target of 145 for 6 to chase with Gaby Lewis top scoring on 39 runs from 33 balls.
Sri Lanka had no problems from the crease and won with 20 balls to spare.
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The two sides will meet again tomorrow before travelling to Belfast for a three-match one-day international series which starts on Friday.