Does anyone know whether Tate's knee injury from earlier in the same Origin series was the one he injured last night? It is pretty rare to injure an ACL after doing a medial on the same knee, but in theory this is the risk of coming back early after an MCL. Neither of his knees were taped last night which was surprising.
If it was a grade 1-2 MCL a month ago followed by a contact injury (which didn't look that horrible - Hayne fell on him) which has retorn MCL and done the ACL, then it is a warning to stay out after an MCL and also to tape up on return. However, I don't think there was much info about his initial injury and whether it was an MCL or something else. Interesting to hear what it was if anyone knows.