Serena Williams marches on

  • Last Updated: January 19 2013, 9:38 GMT

Serena Williams came through a minor second-set scare to cruise into the fourth round of the Australian Open.

Serena Williams: Australian Open progress
Serena Williams: Australian Open progress

The third seed, chasing a sixth Melbourne crown, found herself 3-0 down to Ayumi Morita but responded in the style of a champion to rattle off six games in a row to advance 6-1 6-3.

In further positive news for Williams, she showed no lingering signs of the ankle injury suffered in her first-round whitewash of Edina Gallovits-Hall and which appeared to hamper her movement in Thursday's victory over Garbine Muguruza.

"I feel good," she said. "I was really focused today, she played well and it was a good test."

Williams may see it that way but, in truth, the outcome was never in doubt.

The American ran through the first set with her weight of shot too much for Japanese number one Morita.

Williams broke in games four and six and was rarely troubled on her own serve.

Morita stunned everyone inside Rod Laver Arena by taking the first three games of the second but, seemingly affronted, Williams moved up a couple of gears to extend her winning streak to 19 matches and set up a fourth-round clash with Russian Maria Kirilenko.

Click here for completely free £10 bet with Sky Bet & £5 free every week