They were men back then. I watched the whole clip and earlier on someone gets chopped to the ground and he gets up with his leg so badly hurt he can't put any weight on it. So unbidden he hops to the touchline and then sinks to the ground. None of the wriggling and writhing about like a woodlouse on its back which seems to be the fashion these days.
I was also lucky to be taken by my Dad to that match and at the ripe age of 9 was transfixed by this man . He was one of those players that every time he got the ball you expected something to happen . Croif , Maradona , Messi and Suarez all give you the same feeling and it is special when you see it. Eusebio was a giant both on and off the field and opened the door for all African players that later came to European clubs he was one of the true greats of the game and there are very few of those.