I was thinking the other day about tackling over the years, you know, how the pundits will say "in my day that wouldn't have been a freekick, never mind a red card". And it got me thinking, how the hell did they keep playing week-in, week-out if there were half a dozen leg-breaking challenges every game?
Take the Arsenal team that won the league in 1991, including the brawl with MU, in the entire season less than 20 players were used, and 3 of those players made 2 appearances or less. Basically most teams would have a core of maybe 14 players who would play the vast majority of games. Arsenal have already used well in excess of 20 players in the league this season and we're not even at Christmas yet, and most clubs will be the same.
What I'm getting at is, even allowing for the fact that in the old days players probably played with minor knocks that would see them ruled out these days, surely if football was such a dangerous game back then there would have been many more genuine injuries that would physically prevent players from playing?