Australia beat England in the fifth and final Test of the Ashes series to win the tournament 4-0.
The home nation sealed victory in Sydney by bowling the tourists out for 180, Australia winning by an innings and 123 runs.
England captain Joe Root retired on 58 with illness. In the morning he received treatment for severe dehydration from a bout of gastroenteritis.
England will have the opportunity to regain the Ashes at home in 2019, with their next Test series coming in New Zealand in March, for which the squad is announced on Tuesday 9 January.