Lynch comes back into the squad having been removed from Hockey Australia's contract list in late 2020.

The goalkeeper and former captain Georgina Morgan were surprisingly axed from the 2021 list by then-coach Paul Gaudoin, who later resigned after a review into the women's set-up found it "dysfunctional".

Players threatened to strike following their omissions.

Both successfully appealed, but Morgan was also left out of the recent four-test series in New Zealand.

Lynch, who was named the International Hockey Federation Goalkeeper of the Year in 2019, was deemed in-form enough to warrant selection for her second Olympics.

The identity of the appealing player remains confidential.

If the player chooses to go ahead with the appeal after receiving feedback on why they were not selected, it will go to an appeals tribunal.

"One of the athletes is appealing their non nomination, which just goes to show how difficult it was to pick this team," said Australian women's team coach Katrina Powell, appointed to replace Gaudoin earlier this year.

"There were 27 players in the squad, we used 26 of them in New Zealand, and all performed well.

"It's the right of the athlete to appeal, we're respecting that, and then we'll go through the process."

Hockey Australia has been in crisis following a series of allegations from past and present players against the women's team's hierarchy.

Accusations included bullying, homophobic behaviour and body shaming.

Two months prior to the release of the damning report, Hockey Australia high-performance manager Toni Cumpston quit before Gaudoin resigned.

Eight Olympic debutants are in the squad, including 19-year-old Amy Lawton, who is set to be the fourth youngest Australian hockey player in history at the Games.

Stephanie Kershaw makes the team for the first time after missing Rio 2016 due to injury.

Emily Chalker is to compete at her third Olympics, while seven others are to compete at their second.

Other players on the squad are: Edwina Bone, Jane Claxton, Savannah Fitzpatrick, Kate Jenner, Rosie Malone, Kaitlin Nobbs, Brooke Peris, Karri Somerville, Penny Squibb, Grace Stewart, Renee Taylor and Mariah Williams.

The Tokyo 2020 Olympics are set to take place from July 23 to August 8 following its postponement from 2020 due to the COVID-19 pandemic.