PARIS -- Third-seeded Agnieszka Radwanska became the latest favorite to be eliminated from the women's draw at the French Open, losing 6-4, 6-4 to unseeded Ajla Tomljanovic of Croatia in the third round.
"After seeing the two first seeds go out, you kind of feel like 'I can do this, too,'" Tomljanovic said. "I grew up with these girls that are beating them."
The overwhelming favorite now that the top three have fallen, Maria Sharapova advanced to the fourth round later Friday without losing a game, beating Paula Ormaechea of Argentina 6-0, 6-0 in 51 minutes.
The seventh-seeded Russian, who won the title at Roland Garros in 2012, has lost only 10 games through three rounds this year.
Sharapova will next face Samantha Stosur of Australia. Stosur reached the French Open final in 2010.
It was the earliest Grand Slam exit for Radwanska, the 2012 Wimbledon finalist, since losing in the third round here two years ago. She reached the quarterfinals at the Australian Open and Roland Garros last year, the semifinals at Wimbledon and the fourth round at the US Open.
Her loss leaves No. 4 Simona Halep of Romania as the highest-seeded woman remaining, although No. 7 Sharapova is now arguably the clear favorite.
Radwanska had a chance to break back to 4-4 in the second set, but Tomljanovic saved it with a smart volley at the net.
"Maybe it wasn't her best day, but I definitely think I took advantage and dictated today," Tomljanovic said.
The 21-year Tomljanovic, who had never previously played at Roland Garros, is into the fourth round for the first time at a Grand Slam. She is ranked 72nd and has never won a WTA title.
She next plays No. 14 Carla Suarez Navarro, who defeated American Taylor Townsend.
"I definitely think the tournament is not over for me," Tomljanovic said.
Former US Open champion Stosur, seeded 19th, also advanced to the fourth round after beating No. 9 Dominika Cibulkova of Slovakia 6-4, 6-4.
The Associated Press contributed to this report.