Samantha Stosur’s Australian Open malaise continues with straight sets loss

• Czech qualifier Kristyna Pliskova beat Stosur 6-4 7-6 (8-6)

• Two fourth-round finishes remain Stosur’s best results in Melbourne

Samantha Stosur’s Melbourne Park malaise remains as debilitating as ever, with the veteran jolted from the Australian Open in straight sets.

Stosur added another chapter to her miserable record at home on Monday night, losing 6-4 7-6 (8-6) to Czech qualifier Kristyna Pliskova.