So if Fury will have that kind of mentality here, thinking that Francis is just a walk in the park for him because he is not a pure boxer but a MMA and trying to cross over, then it could be the same outcome.
Overconfidence sure and at the same time belittling the opponent sure can give a boxer his demise. Since when a boxer enter that states, he somehow don't put 100% of his effort and just toy with the opponent when his opponent is exerting more than 100% of his ability. So this event bring lapses to the one who is overconfident and eventually gets cocky and careless which enhance the possibility of an upset win.
But I do not think that Tyso Fury will exercise this thing since as a champion and well-experienced boxer, he knows what to do. Besides he's been careful in choosing his opponent to avoid blemishing his record, I am sure that Tyson Fury will not be careless in this fight.
Indeed, Fury is aware of his opponent's knockout power, and he will take precautions to avoid getting knocked out. His undefeated record showcases his discipline and dedication as a boxer. Fury trains hard for every fight and demonstrates high ring intelligence. He has shown resilience by knowing how to recover and stand up after being knocked down. These qualities highlight his strength and capabilities in the ring, so I would see an upset only a slight chance.