Serena Williams will meet Maria Sharapova in the Australian Open semi-finals after dispatching Amelie Mauresmo 6-2 6-2 in Melbourne.
Mauresmo and Williams have produced several memorable matches in the past but Williams breezed through thanks to an awful display from the second seed.
Mauresmo, who had heavy strapping on her left thigh, became increasingly frustrated as the errors mounted.
Williams will now seek to avenge her Wimbledon final defeat to Sharapova.
The Russian, who earlier saw off Svetlana Kuznetsova in three gruelling sets, beat Williams in thrilling fashion to win her first Grand Slam title.
Sharapova also beat the former world number one at the year-ending WTA Championships.
But Williams said she was looking forward to meeting Sharapova again.
"I feel like I don't have anything to lose," she said.
"I think I was way too nervous at Wimbledon. I couldn't sleep, I couldn't breathe.
"Sometimes you want it too bad that you just freak yourself out. Now I'm fine - I'm really proud of my preparation."
Mauresmo, who has now lost nine of her 10 meetings with Williams, is still seeking her maiden Grand Slam crown.
But she said her defeat was down to an abductor muscle injury, not nerves.
"Tennis is already tough when you're 100%, when you're 50%, when you're not moving so well, it's even tougher," said Mauresmo..
"I thought it would get better as the match went on, but that wasn't the case and the other side got tight as well.
Of Williams' form, Mauresmo added: "She had nothing to do but put the ball back in. You can't judge her form."