Former world No. 1 Test batter Marnus Labuschagne has been dropped from Australia's squad for the upcoming four-match ICC World Test Championship series against New Zealand, following an extended slump in the red-ball format.

Australia made an early decision regarding Labuschagne's status, with selection chair George Bailey confirming the right-hander will not feature in the trans-Tasman series starting in Perth on December 9, according to the ICC website.