Novak Djokovic was ruthless in a 6-0, 6-0, 6-3 win over Adrian Mannarino on Sunday, reaching the Australian Open quarterfinals and matching Roger Federer's all-time Grand Slam record. In a rare daytime appearance on Rod Laver Arena, the 10-time Australian Open champion hit 31 winners and raced to victory in 1 hour and 44 minutes to progress to the last eight for the 58th time at a major, equaling Federer's record.