Legendary tennis siblings Serena and Venus Williams will face off on Saturday in the women’s final of the 2017 Australian Open.

The match will hold extra meaning for the younger Serena, who could win a record 23rd Grand Slam title in the match up against her sister. She is currently tied with Steffi Graf for the most Grand Slam wins in the Open Era.

Serena beat tournament surprise package Mirjana Lucic-Baroni with ease, finishing off the unseeded Croat 6-2 6-1 in just 50 minutes.

In the other semi-final, Venus showed some of her old self as she beat AmericanCoco Vandeweghe 6-7 (3/7), 6-2, 6-3.

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It will be the 9th time the sisters will have met in a Grand Slam final, with Serena having won 6 of the past 8.

“I didn’t watch (Venus). Obviously I was really proud, she’s an inspiration, my big sister,” said Serena.

“She’s my world, my life, she means everything to me. I couldn’t be happier for us both to be in the final. It’s the biggest dream come true for us.”

“It is unbelievable to watch Serena play tennis – the way she hits the ball and the competitor she is,” Venus Williams said after winning the first semi-final. “It would be a dream to see her on the opposite side of the net on Saturday.”

Venus has 7 Grand Slam titles, the last coming at Wimbledon in 2008.