9 of the 'Sheffield Rules' of football you will not believe
Football's first ever green card was shown in Italy's Serie B this week, awarding players for good sportsmanship. We're not sure whether it will catch on.
But it did get us thinking about how the beautiful game has changed. So we've trawled through the archives, to see which of the original 'Sheffield Rules' haven't quite made the cut for the modern game.