Defending champion Jannik Sinner raced to victory at the Australian Open on Saturday to sweep into the last 16 as Iga Swiatek demolished Emma Raducanu.- Rampant Swiatek – In a one-sided battle of former US Open champions, Swiatek romped to a 6-1, 6-0 triumph in a statement victory over Raducanu as she pursues a first Melbourne crown.