That is a textbook yellow card. Hard tackle, but this is a contact sport. To imply that “he knew he had just came back from an acl and intentionally tried to hurt him” is unhinged and you need to log off for a bit. Also, you can’t expect opposition players to go easy on somebody because they just returned from injury. If he wasn’t 100% full fit then he shouldn’t have played and that’s on Ange.