I don't suppose malice aforethought might be a factor? I can't believe the debate is about a high foot (the situation wouldn't even have arisen if Kane hadn't done the old "his second touch is always a header" routine) rather than the injure an opponent intent of the Kane and Alli "tackles". Perhaps some comment might be on Danny Murphy's suggestion that Swansea hadn't got even a caution on the previous Wednesday and players "need to leave a foot in".