Mackenzie Elizabeth Arnold (born 25 February 1994) is an Australian international soccer player who plays as a goalkeeper for West Ham United in the English FA WSL and the Australian national team, the Matildas. She previously played for Arna-Bjornar in Norway's Toppserien as well as Brisbane Roar, Perth Glory, Western Sydney Wanderers, and Canberra United in Australia's W-League.
Club Career
In 2012, Arnold joined Canberra United from Perth Glory ahead of the 2012–13 W-League.
Arnold joined Western Sydney Wanderers in 2013. However, she was later ruled out for a significant amount of the season after suffering a deep cut to the leg in the carpark following a match in the 2013 AFC U-19 Women's Championship.
Arnold returned to Perth Glory in September 2014.
Arnold was approached to switch codes and play Australian rules football in the newly formed AFL Women's in 2016, but chose to remain in soccer.
In October 2016, Brisbane Roar announced that they had signed Arnold.
In March 2018, she signed with Arna-Bjornar in the Toppserien.
In July 2019, she played for the Chicago Red Stars, in the NWSL.
On 9 July 2020, Arnold signed for English club West Ham United of the FA Women's Super League. On 18 April 2021, Arnold was handed a surprise 20-minute cameo in midfield during an 11-0 win over Chichester & Selsey in the fourth round of the Women's FA Cup.