Germany's Angelique Kerber has breezed past American Madison Keys in straight sets to advance to the Australian Open semi-finals in a major statement of title intent.
Kerber, the 2016 title winner, easily beat Keys 6-1, 6-2 inside just 51 minutes.
She will face the winner of world number one Simona Halep's quarter-final against sixth seed Karolina Pliskova.
"It is always tough to play against Madison. She is hitting the ball so hard and I was just trying from the beginning, I played the whole week just going out there playing my game and enjoying it," Kerber said.
"I was just playing my game … I was not thinking a lot about winners or errors, I was staying in the moment and tried to play every single point.
"I'm just happy to get through and be here in the semis."
