The 2024 Australian Open women's singles title will be on the line when defending champion Aryna Sabalenka and Zheng Qinwen collide in the final on Saturday at Rod Laver Arena in Melbourne, Australia. The 25-year-old Sabalenka became the first woman to reach back-to-back finals in Melbourne since Serena Williams in 2016-17 after she beat American Coco Gauff on Thursday. Meanwhile Zheng, a 21-year-old from China, will be playing in her first career Grand Slam final.

First serve is scheduled for 3:30 a.m. ET on Saturday. Sabalenka is the overwhelming -600 favorite (risk $600 to win $100) in the latest Sabalenka vs. Zheng odds, while Zheng is the +400 underdog. The over/under for total games is 19.5, with Sabalenka favored by 5.5 games (-140).

Before you make any Zheng vs. Sabalenka picks or 2024 Australian Open predictions, you need to see what tennis expert Jose Onorato has to say.

Onorato grew up playing competitive tennis in Caracas, Venezuela. After coming to the U.S., he trained with famed coach Nick Bollettieri at IMG Academy in Florida and faced players like Robert Farah, now one of the world's top-ranked doubles players.

Onorato, who holds dual degrees in finance and economics from the University of Miami, does extensive research before placing any tennis bets. He studies current form, players' tendencies on a particular surface, weather conditions and many other relevant factors. That systematic approach has helped Onorato go 128-90-7 -- up 69.25 units -- since 2022.

Onorato knows that Sabalenka has been dominant Down Under. The world No. 2 has won 21 of her last 22 matches in Australia, including her last 13 straight. Her last loss in the Australian Open came to Kaia Kanepi in the round of 16 in 2022. This year in Melbourne, Sabalenka has yet to drop a set en route to the final.

But Onorato also has taken into account that Zheng has ridden a devastating serve to the final. The 5-foot-10 Zheng leads the tournament in aces, hitting 48 across her six matches. By comparison Sabalenka has hit 24 aces. Zheng also leads the tournament in first serves won, converting on 194-of-247 (79%).

For Saturday, Onorato has scrutinized the Sabalenka vs. Zheng matchup in the women's final of the 2024 Australian Open and released his coveted top picks. We can tell you that one of his picks is Under 19.5 total games (-120), but he has another pick on the winner and the number of sets the match will last. You ABSOLUTELY need to see what they are before locking in any 2024 Australian Open picks of your own!

Who wins the Zheng vs. Sabalenka women's final at the 2024 Australian Open? And how many sets does the match last? ... Join SportsLine right now to see Jose Onorato's predictions and analysis for the 2024 Australian Open women's final, all from the tennis expert who is 128-90-7 since 2022!