Text and Data Mining valid from 2020-01-09
Received: 4 June 2019
Accepted: 18 December 2019
First Online: 9 January 2020
Ethics approval and consent to participate
: Ethical approval was confirmed with the University of Sheffield. All players provided informed consent for the use of HIA data for research purposes. All data were anonymised.
: Not applicable.
: The authors, G. Fuller, R. Tucker, L. Starling, E. Falvey, M. Douglas, and M. Raftery, declare that they have no competing interests.