Robert Whittaker on Alex Pereira, 'Absolutely Nuts' Jiri Prochazka; Laughs Off Costa's Troll Attempt

Ahead of his fight against Paulo Costa at UFC 284, Robert Whittaker speaks to Submission Radio about Paulo Costa claiming there's no contract for their fight at UFC Perth, why he's not worried and knows Costa will show up to fight, Alex Pereira beating Israel Adesanya at UFC 281 for the UFC middleweight championship, how he would do against Pereira and his knockout power and size, still wanting Israel Adesanya, Jiri Prochazka vacating the belt and the messed up light heavyweight title picture, his Christmas holiday plans, and more!