Serena Williams marches on in Australian Open tuneup

The 23-time major champion beat Tsvetana Pironkova 6-1, 6-4 on Wednesday to advance to the quarterfinal at the Yarra Valley Classic ahead of next week's Australian Open.

Serena won the first set in 28 minutes and made Pironkova struggle for almost every point in Wednesday's clash.   -  GETTY IMAGES

It's a rare thing for Serena Williams to play a tournament the week leading into one of the tennis Grand Slams.

Now that she's at Melbourne Park, though, she's making the most of her time in the Yarra Valley Classic to prepare for next week's Australian Open.

The 23-time major champion beat Tsvetana Pironkova 6-1, 6-4 on Wednesday to advance to the quarterfinals. She's still on track for a semifinal match against top-ranked Ash Barty.

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Williams had a tough win over Pironkova at last year's U.S. Open, and then withdrew from their scheduled match at the French Open because of an Achilles injury.

That kept Williams on the sidelines until last week. She played her opening matches in Australia in a long-sleeve top.

But it was warmer Wednesday, and Williams came out hot. She won the first set in 28 minutes and made Pironkova struggle for almost every point. The Bulgarian rallied in the second set and saved three match points before Williams finished it off with a powerful service return forcing an error.

Williams was later asked when was the last time she played a warmup tournament so close to a major.

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The U.S. Open, last year, was her short answer. Then she elaborated.

“But before that, before this whole pandemic, I could count the times on one finger I’ve done that," she said. “I’m just happy to be out here in any circumstances. It’s so cool after what the world went through the last 12 months. Very special to be out here."

Williams won her last major title at the 2017 Australian Open, when she was pregnant with her daughter, Olympia. She's still chasing Margaret Court's all-time record of 24 Grand Slam singles titles.