The wales rugby union legend jpr williams has become the latest figure to highlight the potential impact that concussion has on players. jordan davies reports. he is spitting blood and he s going to need heavy attention. if not i knowjp are, he will be back. legendary wales playerjpr williams did return to that infamous and bruising encounter with the all blacks in 1978. it was typical of how he and many other players in his era played the game. he how he and many other players in his era played the game. era played the game. he couldn t wait to get era played the game. he couldn t wait to get on. era played the game. he couldn t wait to get on, can era played the game. he couldn t wait to get on, can he. era played the game. he couldn t wait to get on, can he. you - era played the game. he couldn t wait to get on, can he. you were | wait to get on, can he. you were famously wait to get on, can he. you were famously stitched wait to get on, can he. you were famously st