Tunisian qualifier Ons Jabeur is through to the quarter-finals of the Taiwan Open after a straight sets win against seventh seed Shelby Rogers.
Jabeur, ranked 181st in the world, beat American Rogers 7-5 6-2 and will now play either Elina Svitolina or Lucie Hradecka in the last eight.
Third seed Caroline Garcia was knocked out by Luxembourg's Mandy Minella 6-4 6-4 and fourth seed Anastasija Sevastova fell to Lucie Safarova 6-2 6-4.
There were no such problems for Misaki Doi, with the sixth seed seeing off Japanese counterpart Risa Ozaki 6-4 6-3.
Source: PA