Paris - Garbine Muguruza of Spain blazed into the French Open quarter-finals for the third straight year on Sunday, defeating former champion Svetlana Kuznetsova 6-3, 6-4.
The 22-year-old Venezuelan-born fourth seed will next play the winner of the tie between Shelby Rogers of the United States and Irina-Camelia Begu of Romania for a place in the semi-finals.
"At the end it is always very tough. She is a player with a lot of experience and I just had to be there," she said.
"Quarter-finals is a great run and I am looking forward to improving my result here."
Muguruza is seen as one of the new stars of the women's game after a breakthrough season in 2015 when she was runner-up to Serena Williams at Wimbledon and made the semis at the WTA Finals.
But in 30-year-old Kuznetsova she was up against one of the wiliest and experienced players on the women's circuit with two Grand Slam titles to her name -- the 2004 US Open and the 2009 French Open.
Both players had early break points on a sparsely-filled Philippe Chatrier centre court in a match of high quality.
And it was the Spaniard who struck first in the eighth game powering in a fine backhand return past the Russian to move 5-3 up.
She then served out comfortably for the set in 46 minutes.
Muguruza kept up the pressure and broke Kuznetsova's serve twice at the start of the second set, although she dropped her own in between.
The Russian pulled back to level at 4-4, but it was Muguruza who rose to the occasion taking the next two games and clinching the win on her fifth match point.
Both of her potential quarter-final opponents -- Begu and Rogers -- are into the last 16 at Roland Garros for the first time with Rogers ranked a lowly 108th in the world.
In Sunday's other fourth round games, sixth seed Simona Halep of Romania takes on 32-year-old Australian Samantha Stosur in a clash of two former runner-ups.
Stosur lost to Francesca Schiavone in the 2010 final and Halep lost to Maria Sharapova two years ago.
They have played each other seven times with Halep 4-3 ahead having won their last four encounters, the last of which was a 6-2, 6-0 pounding in the Madrid Open semi-finals earlier this month.
Polish second seed Agnieszka Radwanska, meanwhile, takes on 2010 Wimbledon semi-finalist Tsvetana Pironkova, the world number 102 from Bulgaria.
Radwanska has a 9-2 career stranglehold on the 28-year-old who has reached the fourth round in Paris for the first time.
But Pironkova has already knocked out two seeds on her way to the last-16 -- Sara Errani and Sloane Stephens.
Radwanska, a Wimbledon finalist in 2012, is seeking to reach the last eight at Roland Garros for just the second time.
The biggest win of her career came in Singapore late last year when she won the season-ending WTA Finals