Venus beats Serena in straight sets at Indian Wells

3/13/2018 8:34:20 AM EST

Venus Williams beat Serena Williams 6-3, 6-4 in the third round of the BNP Paribas Open in Indian Wells, Calif. on Monday for her first victory over her younger sister in more than three years.

Venus' last victory over Serena came at the Rogers Cup in Montreal in August 2014. Serena Williams, who gave birth to her first child last August, was playing in her first official WTA tournament since winning the 2017 Australian Open. The sisters played doubles together in a Fed Cup match last month.

"It wasn't very easy, obviously," Serena said after the match. "It was good to play that and try to get in the rhythm and get into the swing again."

Serena Williams entered the tournament unseeded, the first time she has faced her sister while ranked lower since 2008. Serena still leads the all-time series against her sister, 17-12.

In other action, 13th-ranked Sloane Stephens lost to 20th-ranked Daria Kasatkina, 6-4, 6-3. The reigning U.S. Open champion is 2-4 in singles matches in 2018, including a first-round loss at the Australian Open.

"I mean, not going to be too down about it," Stephens said. "There's always next week and the week after."

Australian Open champion Caroline Wozniacki, who won the Indian Wells event in 2011, beat Aliaksandra Sasnovich 6-4, 2-6, 6-3. No. 4 seed Elina Svitolina was the biggest upset victim Monday, losing 7-5, 6-3 to 27th-seeded Carla Suarez Navarro, while No. 12 Julia Goerges also fell 6-3, 6-3 to No. 21 Anastasija Sevastova.

Unseeded American Danielle Collins continued her unlikely run with a 6-4, 6-4 win over Sofya Zhuk of Russia.

--Field Level Media