With first choice keeper Danny Vukovic out on international duty, Redmayne made his first appearance for the Sky Blues against Perth Glory keeping a clean sheet in a 3–0 win. With the departure of Vukovic, Redmayne began pre-season as first-choice and starting every match. He started the first game of the season against rivals Melbourne Victory, helping the team to a 1–0 victory. He made his debut for Australia national soccer team on 7 June 2019 in an friendly against South Korea, as a starter. Brisbane Roar  Sydney FC  Australia: