So Greene has a lower body injury? That's new to me. I guess we're finding out little by little about the injury.
My guess is that Kopi is hurt but not the knee. I think he probably has something like a mild charlie horse. Watching the last game he had some shifts where he was alright but then he had shifts where he completely struggled. Mostly towards the end of the game. I'm sure he gets caught where it hurts a few times and it sets him back a bit. It's funny whenever you get an injury in an area it always is the first place that gets hit!