Australia took a commanding 243-run lead over New Zealand in the third Cricket Test in Sydney today, looking set for a clean sweep of the three-match series.

Earlier, New Zealand were dismissed for 251 in their first innings on the third day today.

Australian Spinner Nathan Lyon claimed five wickets for 68 to lead the Australian bowling attack. It was Lyon's first five-wicket haul in a Sydney Test. For New Zealand, Test debutant Glenn Phillips top-scored with 52 and stand-in skipper Tom Latham hit 49.

Australia captain Tim Paine did not enforce the follow-on.