[3] On 7 August 2022, as a result of all three editions being very poorly attended and riddled with logistical issues, along with heavy financial losses, and disdain for the event from fans, players - particularly women's players - and officials, Tennis Australia announced that the ATP Cup would be shut down, to be replaced by a mixed-gender United Cup from 2023.

1 singles player at the entry deadline on 2 December 2021, while host country Australia received a wild card.

[9] On 1 December, Spanish world number six Rafael Nadal declined to take part in the Cup,[10] though Spain qualified with their next best singles player.

[12] Serbian world number 1 Novak Djokovic withdrew on 29 December 2021 due to travel and logisitical issues, but Serbia remained at the ATP Cup as their next best ranked player Dušan Lajović met the entry criteria.

[6] Note: By ATP Cup rules a retired match counts as a straight-set win or loss, but not into percentage of games.