The Hockeyroos have made two changes to the squad for the four-team international tournament in Darwin.
Teenager Kaitlin Nobbs has been called up by the Hockeyroos to replace star Anna Flanagan, who has been axed from Australia's final two tournaments leading up to the Olympics over a drink-driving conviction.
Uncapped 18-year-old Nobbs comes into the squad as one of two changes ahead of Australia's opening game of the four-team international tournament in Darwin against Japan on Tuesday night.
Laura Barden is the other change, coming in for Georgie Parker, who will be rested from the series due to a minor knee problem.
Western Australia's Flanagan was fined and lost her licence for 10 months for driving under the influence in Perth.
The incident occurred in March, with Hockey Australia only learning of the matter last Friday.
Hockey Australia have confirmed Flanagan remains eligible for the Australian Olympic team.
Flanagan will also miss the trip to London with the Hockeyroos' for the Champions Trophy.
The tournament in the UK runs from June 18-26 and features Australia, the US, New Zealand, Argentina, the Netherlands and Great Britain.