What the best fighters fear most
The best fighters in the world, the likes of Jon Jones, GSP, Khabib etc. All have one thing in common, they all fear the unpredictable fighter.
Jon Jones doesn't like taking short notice fights because he likes to analyse the fighter to reduce the risk of suprise. GSP had trouble with the unpredicatable Matt Serra and Khabib's most difficult challenge was Conor McGregor because he had the best chance of springing a surprise with one of his fast strikes.
All these fighters carefully plan for their opponents and like to study them well before they fight.