If your boy Xhaka made that first challenge he'd get deportedI don’t think the first Kovacic challenge was a straight red card but the second was definitely a second yellow.
You have raised a bit of an internal debate for me. Should an offence be viewed as an isolated event and punished accordingly or should previous cautions be considered that the player is not learning and represents a safety issue to other players if not sent off? A bit like accumulating fouls resulting in soft yellows. I’m not sure.