Australia have qualified for sure in WS. They are in qualifying via continental spot in WD/MS and XD. But, they can qualify via continental spot in only 2 disciplines, so they have to drop one of them. WD pair is the only one of the three who are competitive at top stage, so it is safe to assume they would be one of the 2 disciplines chosen. If they drop MS, I couldn't find any other eligible athlete for Oceania quota, so it should go to next highest ranked athlete, . If they drop XD, their quota would go to .