World No. 1 Ashleigh Barty squares off against No. 5 Elina Svitolina on Thursday in the semifinals of the 2021 Miami Open. The match is scheduled for 6 p.m. ET. William Hill Sportsbook lists Barty as a -225 favorite, while Svitolina is a +175 underdog.

Before you make any Barty vs. Svitolina or 2021 Miami Open women's semifinal picks, you MUST see what Gavin Mair has to say.

Mair is the international women's tennis expert who called unseeded Jelena Ostapenko (80-1) winning the 2017 French Open, Naomi Osaka (32-1) winning the 2018 U.S. Open and Bianca Andreescu (20-1) winning the 2019 U.S. Open. And before the women's singles final in the most recent grand slam, the Australian Open, he picked Osaka to win in straight sets (-162) and for the match to go Under 20.5 total games (-118), and he was right on both counts.

Now, Mair has broken down the latest 2021 Miami Open women's semifinal odds and released his coveted best bets for Svitolina vs. Barty. You ABSOLUTELY need to see Mair's analysis of Barty vs. Svitolina and the 2021 Miami Open before you bet.

So who wins the Barty-Svitolina semifinal? And how many sets will it go? ... Join SportsLine right now to see Gavin Mair's 2021 Miami Open semifinal picks, all from the acclaimed expert who hit it big in the last grand slam women's final! -- Use promo code TENNIS to get your first month of SportsLine for a buck!