UFC LIVE: Jack Della Maddalena UP NOW in world title blockbuster after 16-sec KO stuns

Australian Jack Della Maddalena defends his welterweight crown against Islam Makhachev in a blockbuster main event to cap off a stacked UFC 322 card, which also sees Valentina Shevchenko face Zhang Weili in the co-main event with the flyweight title on the line.