Not all the matches the team participated in were monitored with the XPatch due to requirements of World Rugby (WR). As part of the ethics approval process and consent requirement, WR required that the participants, and club enrolled in the study provided informed consent and indemnity to WR, Australian Rugby Union (ARU), New South Wales Rugby Union and the participating club. This consent and indemnity was also required to be signed by the opposition team members and a representative of the club prior to the match occurring and, if this was not obtained, the XPatches were not to be utilised during the matches. This WR requirement occurred after the ARU and the ARU Concussion advisory group provided approval for the research to occur and the season had commenced. This is seen as a limitation to this study and the results should be interpreted with some caution as this is not reflective of a full season of competition matches.