D'Arcy Short is in a three-horse race to slot at the top of WA's batting order for this week's Sheffield Shield final after former Test opener Cameron Bancroft was ruled out of the match after suffering a shock concussion.

Bancroft, who ran second in the season's run scoring with 778 runs (48.62 average), is understood to have hit his head after falling from his bike on Sunday.

Short stands as a possible replacement in Western Australia's XI to face Tasmania starting Thursday in Perth alongside dual Shield champion Teague Wyllie and squad incomer allrounder Cooper Connolly.

With a list of options ahead of the reigning Shield champions and three-peat hopefuls after consecutive final triumphs, Short remains an outside chance after limited opportunity in their 2023/24 campaign.

The Mitakoodi batting allrounder featured in WA's first-class setup at no.5 against 146-run win over Queensland earlier this month.

After a modest first innings knock, he helped his side cement a strong lead with 49 in his second appearance at the crease.

Should WA go for the extra batter and utilise Short as an option left-arm spin option against the Tigers at home, the 33-year-old could feature further down the order.

The Sheffield Shield final commences Thursday morning at the WACA.

Tasmania are aiming for their fourth title, and first since 2012/13, in almost fifty years since joining the competition.