Arnold in action for Australia at the Algarve Cup
|Full name||Mackenzie Elizabeth Arnold|
|Date of birth||25 February 1994|
|Place of birth||Gold Coast, Queensland, Australia|
|Height||1.79 m (5 ft 10 1⁄2 in)|
|2013–2014||Western Sydney Wanderers||3||(0)|
|* Senior club appearances and goals counted for the domestic league only and correct as of 13 February 2017.
‡ National team caps and goals correct as of 6 March 2017
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 received her first call-up to the Australian national team for a tour of the United States in 2012. She made her debut in November that year, keeping a clean sheet in a win over Chinese Taipei in the 2013 EAFF Women's East Asian Cup preliminary round 2. She soon began to feature regularly in national squads in 2013, with previous incumbent goalkeepers Melissa Barbieri and Lydia Williams unavailable. Following their returns, Arnold was not included in the national setup for some time, before returning for the 2015 Cyprus Cup in March 2015.
Arnold was selected in the Australia squad for the 2016 Summer Olympics as one of two goalkeepers in the squad along with Lydia Williams. She played one match in the tournament, a group stage win over Zimbabwe.
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