Dominic Ryan: his story  underlines that doctors and match officials are right to err on the side of caution in demanding players undergo  HIAs. Photograph: Bryan Keane/Inpho

Dominic Ryan’s interview with John O’Sullivan in last Saturday’s edition of this paper was a powerful read, and in the way it was constructed, written(...)

A detailed study of more than 600 incidents revealed that 72 percent of the injuries were sustained in a tackle situation. Photograph: Billy Stickland/INPHO

Officials from World Rugby are discussing the results of a wide-ranging investigation into head injuries with one probable outcome being an experiment(...)