Text and Data Mining valid from 2019-06-11
Received: 3 March 2019
Accepted: 27 May 2019
First Online: 11 June 2019
Ethics Approval and Consent to Participate
: The South Sydney Football Club contributes to Daniel Glassbrook’s research scholarship.The authors, Tim Doyle, Jacqueline Alderson and Joel Fuller, declare that they have no competing interests.