Just how GOOD was Iker Casillas Actually?

COMMENT BELOW WHAT PLAYER I SHOULD DO NEXT. How good was Iker Casillas actually? #GOAT New episode of a documentary series where I plan to present all the greatest players of all time and then give them a score so a ranking of the best players can be created. In this episode we take on Iker Casillas who played for Real Madrid for most of his career , not only one of the greatest forwards of all time but one of the greatest players of all time. See how Iker Casillas ranks and just how good was he.