PARIS, June 2 (Reuters) - Romania's Simona Halep, the highest seed left in the women's singles draw, outwitted American 15th seed Sloane Stephens to reach the quarter-finals at the French Open with a 6-4 6-3 victory on Monday.
Stephens made too many unforced errors as Halep, the fourth seed, won through to set up a clash with either 27th seeded former champion Svetlana Kuznetsova of Russia or Czech 23rd seed Lucie Safarova.
With Romanian tennis great Ilie Nastase watching from the stands, Halep worked the angles to unsettle Stephens, who struggled behind her serve throughout.
Halep, who made her only previous grand slam quarter-final appearance at this year's Australian Open, prevailed on the first match point when Stephens, the last American in the women's singles, sent a forehand long. (Reporting by Julien Pretot; Editing by Alan Baldwin)