Quebec teenager Eugenie Bouchard advanced to the second round of the Strasbourg International on Tuesday.
The 19-year-old from Westmount won in straight sets at the tournament in France over Silvia Soler-Espinosa of Spain, 6-3, 6-3.
Bouchard, ranked 93rd in the world, is getting back into tour play, having helped Canada last month to an opening round win over Ukraine in the Federation Cup.
The Canadian will next face Camila Giorgi.
Giorgi upset top-seed Marion Bartoli by scores of 6-3, 6-2.
Bartoli dropped her serve six times in the match against the 88th-ranked Italian, who had four aces.
Two other top seeded players were also sent down to defeat. No. 2 Tamira Paszek of Austria was beaten by wild-card entry Virgine Razzano of France 6-1, 6-4.
The 29-year-old Razzano notably upset Serena Williams last year in the first round at the French Open, which begins next week.
Heavy rain prevented any play on Monday, forcing seven first-round matches to be moved to Tuesday.
Third-seeded Alize Cornet converted all four break points to win 6-3, 6-2 against Mathilde Johansson, No. 5 Monica Niculescu of Romania rallied past Marina Erakovic 6-7 (7), 6-3, 7-5 (5), and No. 7 Chanelle Scheepers topped Claire Feuerstein 7-5, 6-4.
Flavia Pannetta, Misaki Doi, Anna Tatishvili, Johanna Larsson, Lucie Hradecka, Magda Linette and Shelby Rogers advanced.