(Reuters) - More than 100 former rugby internationals have agreed to take part in a unique scientific study on the effects of concussion on brain health to increase player safety standards in the sport, the Rugby Football Union (RFU) has said.
The issue has long been a source of concern in rugby and resurfaced last month when England captain Dylan Hartley, sidelined for 14 weeks with various head injuries last season, said he would consider retirement if he suffered another concussion.
