Correction

In the original article [1] reference was made to the Hawk-Eye system having been used as the sideline operating system during the 2015 season. This reference was inaccurate; the data included in this study came from either commercial or non-commercial video systems used at the matches played during the 2015 season.

The Hawk-Eye system is mentioned on two occasions in the article:

  1. 1)

    The Procedures section (p2, column 2) states: “The Hawk-Eye system (Hawk-Eye SMART productions) was used for matches in the current study; however, this was not available at any of the matches played in South Africa during the 2015 season.”

    This sentence should read: “Either commercial or non-commercial video systems were used for matches in the current study; however, these were not available at any of the matches played in South Africa during the 2015 season.”

  2. 2)

    The Analyses section (p3, column 1) states: “Thirdly, the effectiveness of sideline video review for identifying HIEs was evaluated by comparing the number of additional HIEs detected on retrospective post-season review between matches with and without the Hawk-Eye system available.”

    This sentence should read: “Thirdly, the effectiveness of sideline video review for identifying HIEs was evaluated by comparing the number of additional HIEs detected on retrospective post-season review between matches with and without the sideline video system available.”