A week ago people started saying that Law'll be the one to beat Mingo. I haven't seen you using this 'it is too early to decide' logic back then.hmmThis would be like me saying the scene of Zoro leaning against the pillar, chest torn apart and covered in blood was a guarantee Daz Bones would beat him. It's not over until it's over.
Law failed to beat Joker when he was in a much better condition. So, I have no reason to believe that he can do that with single arm and all those injuries.