Tszyu should study the tape (i think they will) and find the weakness of Jeff Horn.
I'm 200% sure that Tim with his father had already studied everything about his opponent and Tim's father already pointed all the weak points of Horn.
All what time is need to do is to stick to game plan.
It's a mental conditioning after the physical, boxers needs to stay with the plan and execute.I've watches an interview with Kostya Tszye few months ago. He talked a lot about his current life and plans. And I remember he spoke about Tim. Little part from it:
One day Tim called him and during their talk asked to fly to Australia because he wanted to "test his father". Tim says "he is ready". You know it is in lions pride - when young tries his strength against head of pride. During their sparing, Tim showed some aspects of over aggression (when you hit your opponent off-guard, opponent doesn't like that and answers with much harder punches). Kostya warned him that this might end bad and asked to calm down. Tim did not really listened to him and gots a punch (TKO or dazed, don't know how to tell correctly, Kostya said "he sat Tim on the butt").
Maybe this was just a story to tell to the interviewer, but this is not first time Kostya speaks about Tim aggression and rush to punch/win/get his opponent. That is why I think against more experienced Horn, he will rush with his attacks and get that one counterpunch, that might end the fight.
but at the same time i would love to see Tim beat up Horn in this fight. 
