Li Na set to meet surging Canadian teenager Eugenie Bouchard in Australian Open semis

The Chinese twice-runner up at the Australian Open brushed aside Flavia Pennetta on Tuesday to set up a meeting with Bouchard, who shocked Ana Inanovic to book her first Grand Slam semi-final appearance.

Li Na's only Grand Slam victory came at the 2011 French Open. Mark Dadswell / EPA

Li Na has exciting young teenager Eugenie Bouchard standing in the way of a second consecutive Australian Open final after the Chinese star crushed Flavia Pennetta to make the last four Tuesday.

The fourth seed demolished the Italian 6-2, 6-2 to set up an enticing clash with the Canadian hotshot, 12 years her junior, who upset former world No 1 Ana Ivanovic in three sets.

Chinese trailblazer Li, 31, is a two-time Melbourne finalist but has never lifted the trophy, losing to Kim Clijsters in 2011 and last year to Victoria Azarenka after dramatically twice rolling her ankle and briefly blacking out.

With revenge against Azarenka in prospect, Li powered past Pennetta and appears to be hitting peak form at the right time.

“I think everyone wants to win a Grand Slam. But first you have to be in the semis, right?” said Li, when asked about her chances with Serena Williams and Maria Sharapova both already out.

“But I was really happy today. At least tomorrow I have a day off. I can talk with (coach) Carlos (Rodriguez), can talk with the team and prepare for the next round.”

The next match is an unknown quantity for Li with Bouchard coming from nowhere to make her first ever Grand Slam semi-final, mirroring last year’s run to the last four by another teenager, America’s Sloane Stephens.

Bouchard rallied from a set down to beat resurgent 2008 French Open champion Ivanovic and reinforce her status as one of the game’s most exciting prospects.

The 19-year-old Canadian, the WTA’s newcomer of the year in 2013, showed composure and grit to upset the 14th-ranked Serb 5-7, 7-5, 6-2.

It was all the more remarkable in that she is making her tournament debut, with the victory forecast to push her into the world’s top 20 when the new rankings are released next week.

“I feel like she was playing really well and I had to keep fighting and playing aggressive,” Bouchard said. “I feel like I stepped it up in the second and third sets.”

The shock win ended the unbeaten streak of Ivanovic, who came into the tournament on the back of victory at the Auckland International and shocked Williams in the third round.

Ivanovic, who took a medical timeout in the second set with a left leg problem, was aiming to make her first Grand Slam semi-final since 2008, when she won the French Open and made the Australian Open final.

She tipped Bouchard for a big future.

“She’s a young girl. I think she has a very bright future in front of her,” said the 26 year old, who herself found fame at an early age and admits she struggled with the pressure.

“She’s a very aggressive player. It’s sometimes very hard to read her game. There is no real patterns like with other players you have. She’s a great mover,” the Serb added.

Li will have her work cut out against Bouchard but, as experienced 28th seed Pennetta found, the Chinese is hitting top form.

The Italian, who is exactly one day older than Li, said her fellow veteran was continuously improving and would be hard to beat in Thursday’s semi-final.

“She’s No 4 in the world, she’s a Grand Slam champion. That’s what we’re talking about,” she said.

“She just improved her game a lot. She’s really consistent and today she was much better than me on the court.”

The other semi-final will be determined by the quarter-finals on Wednesday. The headliner will be second-seeded Azarenka against fifth-seeded Agnieszka Radwanska. The winner of that will face either No 11 seed Simona Halep or Romania or No 20 seed Dominika Cibulkova of Slovakia.