HIGHLIGHTS-Tennis-Australian Open day eight

Highlights of the eighth day of the Australian Open at Melbourne Park on Sunday, all times local (GMT +11): 1536 RUTHLESS DJOKOVIC KNOCKS OUT MANNARINO

Top seed Novak Djokovic delivered a master class to defeat Frenchman Adrian Mannarino 6-0 6-0 6-3, the 36-year-old wrapping up the match in an hour and 44 minutes. 1516 KOSTYUK BREEZES PAST TIMOFEEVA

Ukrainian Marta Kostyuk stormed into her first Grand Slam quarter-final with a 6-2 6-1 victory over Maria Timofeeva of Russia. "I didn't feel the pressure today. It's great to have this kind of match in a Grand Slam," Kostyuk said after beating Timofeeva. "I'm very happy to finally play as aggressive as I want."

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1450 ANISIMOVA WILL RETURN TO THE TOP, SAYS SABALENKA Sabalenka had some kind words for the 22-year-old Anisimova, who had pulled out of the tour last May because of mental health concerns and burnout.

"She's a tough opponent. I'm super happy to see her back on tour. I'm pretty sure she'll be back on top soon," she said after the match. 1439 SABALENKA CRUSHES ANISIMOVA

Second seed Aryna Sabalenka continued her title defence with a 6-3 6-2 demolition of American Amanda Anisimova to reach the quarter-finals, overpowering the 2019 French Open semi-finalist in an hour and 10 minutes. Sabalenka is the highest seed left after world number one and four-time major winner Iga Swiatek was stunned by Czech teen Linda Noskova on Saturday.

1318 GAUFF CRUISES PAST FRECH U.S. Open champion Coco Gauff made light work of Pole Magdalena Frech to seal a 6-1 6-2 victory on Rod Laver Arena.

This is the first time the 19-year-old Gauff, the fourth seed, has made it past the fourth round at Melbourne Park. 1215 PLAY BEGINS AT MELBOURNE PARK

Coco Gauff and Magdalena Frech kicked off their fourth round clash at Rod Laver Arena. The temperature was hovering around 21 degrees Celsius (70 Fahrenheit) with a slight chance of rain later in the day.