"I played my 400th Football League game for Liverpool, against Bury at Anfield, and three weeks later was carried off on a stretcher for the first time in my life. This was when we were playing Doncaster Rovers and I went up for a high ball at the same time as Jim Kilkenny, the Rovers' left-half. Our heads met with a terrific bump and we both fell to the ground like logs. I was unconscious, so that it was only later that I knew Kilkenny had also been taken off. Neither of us resumed, and apparently Jim had come off worst; at any rate he had to have six stitches in his wound, whereas three sufficed for mine."
Even though Billy Liddell seemed invincible, he was once knocked unconscious during a game