One game he did play in, and one which I attended, was at Bloomfield Road in the early 1970s. The game finished 0-0 and United sent Blackpool crashing down into the old Div 2. Although it finished 0-0 Charlton scored the best goal I've ever seen - ever. Obviously disallowed, for what reason I've never known.
He received the ball inside his own half, just outside the centre circle, lifted the ball up with his instep then cracked a volley straight into the net! It must have been at least 40 yards out. Never have I seen a ball hit so hard! Saw him a play a few times but that goal has always stood in my mind.
If it had been allowed and the TV cameras had been there, I've no doubt it would have been judged to have been the Goal of the Century.