Slide tackling from behind is the call that i see that is missed most often, i feel it rivals offsides. My understanding is that ANY tackle from behind is an automatic yellow card. There is nothing about how much ball you get. I think this needs to be clarified and emphasized to refs. A blown offside call mayu result in a goal or a loss of a game and, in my case, it was the end of a streak. But a tackle from behind, even if the player gets all ball, can seriously injure the player being tackled.
A shoulder to shoulder tackle is legal and certainly a slide tackle from the side is fine but i have seen too many players salide opposinbg players from behind as a desperate measure and if it is the last defender who slide a player, that is an automatic red card.
