Welcome to the Australian Open briefing, where will explain the stories behind the stories on each day of the tournament. On day six, Aryna Sabalenka showed some vulnerability, coffee was a talking point and two players set up a fascinating rematch. How Aryna Sabalenka’s early performances change the feel of the tournament Just like last year, world No. 1 Aryna Sabalenka is through to the fourth round of the Australian Open without dropping a set. But that’s pretty much where the similarities en