Goalkeeper Casey Dumont has been ruled out of the 2015 FIFA Women's World Cup after suffering an ACL injury on her senior Matildas debut last Thursday.

The injury occurred towards the end of regulation time in Thursday's international friendly with New Zealand.

Upon returning home to Queensland, scans confirmed the suspected diagnosis of an ACL tear with Dumont confirming the news on Twitter.

https://twitter.com/CaseyDumont/status/566484474490138624

https://twitter.com/CaseyDumont/status/566467410836717569

On what was to be the happiest day for the custodian after waiting 5 years to pull on the gloves for Australia, it has become the most devastating with the 12 month rehabilitation ruling the 23 year old out of a probable second World Cup and the 2015/16 W-League season.

It is a big blow for a goalkeeper who had battled hard to return from debilitating lower hip and abdomen injuries before returning to career best form with Sydney FC.

Dumont becomes the second Matildas goalkeeper to be on the sidelines with Lydia Williams currently racing to be ready from an ACL tear suffered in August 2014, while striker Leena Khamis is in a similar race to present for selection.

Dumont will undergo surgery next week at the national team medical centre in Adelaide.

For the national team, Dumont's injury brings former captain Melissa Barbieri and possibly Perth Glory goalkeeper Mackenzie Arnold in the frame.

With the team reporting for camp on Monday to prepare for next month's Cyprus Cup, head coach Alen Stajcic has a number of decisions to make regarding a previously solid position.