Waratah Caitlyn Halse will become the youngest ever Wallaroos player when she runs out in the No.15 jersey against the United States on Friday.

The 17-year-old Halse is one of several changes in the Wallaroos starting side after the defeat to Canada in the opening match of the Pacific Four series.

Halse overtakes the previous age record set by Sharyn Williams in 1994 and replaces Lori Cramer in the starting side.

In further changes, Eva Karpani will start in the forwards and Samantha Wood at scrumhalf with Bridie O’Gorman and Layne Morgan moving back to the bench.

Last week’s debutants Sally Fuesaina and Hera-Barb Malcolm Heke retain their spots on the bench with Tabua Tuinakauvadra dropping out of the squad.

“Despite the result, we took a lot of positives from our first hit out. We are also aware of our areas to work on and the players have worked really hard on these this week,” coach Jo Yapp said.

“We have made a couple of changes, Caitlyn comes into the side to make her Test debut. She has impressed at Super W level and we are all excited to see her gain her first cap.

“We are also looking forward to playing against the USA at AAMI Park in Melbourne.”

WALLAROOS TEAM

Brianna Hoy (NSW Waratahs) – 4 capsTania Naden (ACT Brumbies) – 11 capsEva Karpani (NSW Waratahs) – 22 capsKaitlan Leaney (NSW Waratahs) – 16 capsMichaela Leonard (c) (Western Force) – 23 capsSiokapesi Palu (ACT Brumbies) – 7 capsAshley Marsters (Melbourne Rebels) – 27 capsPiper Duck (NSW Waratahs) – 11 capsSamantha Wood (Western Force) – 1 capArabella McKenzie (NSW Waratahs) – 22 capsDesiree Miller (NSW Waratahs) – 3 capsTrilleen Pomare (Western Force) – 25 capsGeorgina Friedrichs (NSW Waratahs) – 20 capsMaya Stewart (NSW Waratahs) – 9 capsCaitlyn Halse* (NSW Waratahs) – debut

Reserves

Hera-Barb Malcolm Heke (Western Force) – 1 capSally Fuesaina (ACT Brumbies) – 1 capBridie O’Gorman (NSW Waratahs) – 18 capsAtasi Lafai (NSW Waratahs) – 10 capsLeilani Nathan (NSW Waratahs) – 3 capsLayne Morgan (NSW Waratahs) – 20 capsFaitala Moleka (ACT Brumbies) – 7 capsLori Cramer (Queensland Reds) – 20 caps