Carrara, Nov. 3 -- Australia swashbuckler Travis Head will remain unavailable for the final two matches of the five-match series to prepare for the Ashes, scheduled to begin on November 21, by representing South Australia in the Sheffield Shield.

The 31-year-old southpaw will be available for South Australia's fixture against Tasmania in Hobart next week. The contest will mark Head's first first-class match since the tour of the West Indies in July this year.

Head's form in the white-ball format has been dwindling over the last month. After notching 142 against South Africa in August, the belligerent top-order star has a best score of 31 in eight innings across T20Is and ODIs.

The experienced star will be a crucial cog in Australia's T...