Highlights of the seventh day of the Australian Open on Saturday (all times GMT): 0904 SHELTON KNOCKS OUT MUSETTI Lorenzo Musetti was sent packing by American 21st seed Ben Shelton, who beat the Italian 16th seed 6-3 3-6 6-4 7-6(5).

Australian Open is showcasing a crop of young men's players who are better equipped for the changes in tennis than their elders.

“The AO is something that connects really well with New Balance because the mix of sport and culture they have is incredible,” Evan Zeder, New Balance director of global sports marketing for tennis, tells me. “I think the AO is a perfect mix and it is just a big party.”

Novak Djokovic will resume his bid for a record 25th Grand Slam title when the fourth round of the Australian Open begins on Sunday at Melbourne Park, where defending women's champion Aryna Sabalenka takes on Russian teenager Mirra Andreeva.

Iga Swiatek, of Poland, plays a backhand return to Rebecca Sramkova, of Slovakia, during their second round match at the Australian Open on Thursday in Melbourne.