Two-time Australian Open champion Naomi Osaka stopped playing because of a strained abdominal muscle after dropping the opening set of her third-round match against Belinda Bencic. “I kind of have a history of it,

Swiss Belinda Bencic advanced to the last 16 of the Australian Open after two-time champion Naomi Osaka retired during Friday's third-round match with an abdominal strain that has affected her since the start of the season.

Belinda Bencic (No. 294) will take on Naomi Osaka (No. 51) in the Round of 32 at the Australian Open on Thursday, January 16.Osaka secured a three-set victory over Karolina Muchova (1-6, 6-1, 6-3)