For me, that was a yellow card, but I would like them to be red cards. I've said it before on here - I would like the law to say something like 'if a player makes a deliberate, reckless challenge with no attempt to play the ball, it should be a red card'. To me, it looked a red from first viewing, but the replay showed a low point of contact, and not much force behind it at all. The speed made me think red initially, but I don't think this ticked the SFP boxes. I think it was a yellow card, but I can understand red. I think there should be more clarification in law whether challenges like this (with no attempt to play the ball) should be seen as reckless, violent or dangerous