As far as rugby league tough guys go, you'll struggle to find many that fit that description better than Keith Senior. The Leeds Rhinos legend, who made 365 appearances for the club, was one of the most feared players in the game.
Of course, he had his fair share of head injuries and, more topically, concussions. The ex-centre, now 47, was part of a generation that didn't know the full extent of brain injuries. In the present day, 100 former league players, many of whom Senior shared a field with, have now had legal proceedings launched on their behalf against the Rugby Football League.
It is, inevitably, a tricky subject for Senior, who is well aware that he too could have a brain injury following a career that spanned three decades. However, he will not be joining the legal case that is currently a very real threat to the governing body.