Top-seeded Karolina Pliskova on Monday crashed out of the WTA Indian Wells tournament, losing in straight sets to unseeded Beatriz Haddad Maia 6-3, 7-5 in a third round match.

Playing in windy conditions on one of the outer courts at the Indian Wells Tennis Garden, Brazil's Haddad Maia jumped out to a 3-1 lead in the second set before the Czech picked up her game.

Haddad Maia fought back, clinching the match on her second set point when Pliskova flubbed a backhand off the top of her racquet, sending the ball skyward to end the contest, which took over two hours to complete.

Haddad Maia moves on to face Estonia's Anett Kontaveit in the round of 16. 

Meanwhile, Kontaveit continued her fine run of form by ousting defending champion Bianca Andreescu 7-6 (7/5), 6-3 in the third round.

Kontaveit, who is seeded 18th, stretched her win streak to eight straight matches and continued her domination over Andreescu, winning all three career matches over the Canadian.

The 21-year-old Andreescu had a breakout year in 2019, winning in Indian Wells, Toronto, and at the U.S. Open for her first Grand Slam title.

Andreescu's defeat also leaves just one former winner in the women's draw, Victoria Azarenka, who won twice in 2012 and 2016.

Azarenka has already advanced to the fourth round, where she will play Aliaksandra Sasnovich, who upset former world No. 1 Simona Halep in the third round. 

In the men's draw, U.S. Open champion Daniil Medvedev reached the fourth round with a 6-2 7-6(1) victory over Serbia's Filip Krajinovic on Monday and said he was pleased to reach 50 wins this season. 

The top-seeded Russian took to the court following a long rain delay and wasted no time in showing the kind of form that earned him a maiden Grand Slam title last month, going 4-0 up before taking the opening set. 

Krajinovic fought back in the second set to lead 4-2 before Medvedev found his groove to force a tie-break, which he dominated to claim the win. 

"So I'm really happy that I managed to get 50 (wins). It means I was doing pretty good in a lot of them,” Medvedev said. 

Up next for world number two Medvedev is Grigor Dimitrov, who beat American Reilly Opelka 6-3 6-4 earlier in the day. 

Medvedev's compatriot Andrey Rublev lost 6-4 3-6 7-5 to American Tommy Paul. 

Third seed Alexander Zverev will take on three-time Grand Slam champion Andy Murray in the third round. 

The tournament, which features both men's and women's fields, is normally held in March but returned to the California desert this fall after a two-and-a-half-year hiatus due to COVID-19. 

(With input from agencies)