As the second round of the Australian Open continued, so did the upsets for many of the tournament’s top players.

World No. 3 Garbiñe Muguruza fell 6-3, 6-3 to world No. 61 Alizé Cornet in 87 minutes. Cornet handled Muguruza easily, winning 83 percent of her first-service points. The 31-year-old had a mere 16 unforced errors to Muguruza’s 33.

It’s Cornet’s 10th win over a top five player in her career.

The Frenchwoman will face off against No. 29 seed Tamara Zidansek in the third round for the first time.

Sixth-ranked Anett Kontaveit found herself upended by Clara Tauson in straight sets 6-2, 6-4.

At 19 years old, Tauson is currently ranked 39th in the world. Just her second match against a top 10 player, it’s her first top 10 win as she advances to the third round of a major for the first time.

Tauson forced 27 unforced errors out of Kontaveit while conceding just 13 of her own.

“I think everything was working,” Tauson said with a smile in her post-match press conference. “I felt really comfortable on court. It was a nice court to play on. The weather was really good today. I just felt really good out there. Just went for everything and it worked today.”

The teenager will meet No. 27 Danielle Collins in the third round.

Another upset found its way late in the second round as Danka Kovinic took down No. 17 seed Emma Raducanu 6-4, 4-6, 6-3. It’s Kovinic’s fourth career top 20 win.

Having lost in the second round of six previous majors, it’s Kovinic’s first time advancing to the third round of a Grand Slam.

The player from Montenegro will face off against Simona Halep in the third round.

Raducanu, who was struggling with a deep blister on her racket hand, said after she had to resort to a slice.

“There were some people in my team that maybe didn’t want me to play but I wanted to go out there & fight through it, see how far I could get,” she said. “I discovered tools about myself and my game that I didn’t know I had.”

No. 12 Elena Rybakina is also out after her second round match. Rybakina was forced to retire in the second set, having gone down 6-4 against Shuai Zhang.

Iga Swiatek managed to stay the course on Tuesday, sealing a 6-2, 6-2 win over Rebecca Peterson. It’s the No. 7 seed’s third straight year advancing to the third round at Melbourne Park.

Swiatek will face off against No. 25 Daria Kasatkina in the third round.