Bastad - Estonian qualifier Anett Kontaveit has upset top-seeded Alize Cornet of France 7-6 (3), 6-3 on Tuesday in the first round of the Swedish Open.
The pair broke each other's serve twice in the first set before the 161st-ranked Kontaveit won the tiebreaker against the 21st-ranked Cornet. The 18-year-old Kontaveit next faces Jana Cepelova of Slovakia.
Cornet wasn't the only seeded player to go out on Tuesday. Laura Siegemund of Germany defeated fourth-seeded Yaroslava Shvedova of Kazakhstan 7-5, 6-3, while Richel Hogenkamp of the Netherlands beat fifth-seeded Slovakian Anna Schmiedlova 6-3, 6-1.
Also, Germany's Dina Pfizenmaier advanced to the second round by defeating two-time winner and eighth-seeded Polona Hercog of Slovenia 7-5, 7-6 (5).
However, sixth-seeded Annika Beck of Germany beat Poland's Katarzyna Piter 6-3, 4-6, 6-3 after breaking her serve 10 times.
Results on the second day of the WTA Swedish Open on Tuesday (x dentoes seeding):
Anett Kontaveit (EST) bt Alize Cornet (FRA x1) 7-6 (7/3), 6-3
Yulia Putintseva (KAZ) bt Teliana Pereira (BRA) 3-1 - withdrew
Dinah Pfizenmaier (GER) bt Polona Hercog (SLO x8) 7-5, 7-6 (7/5)
Laura Siegemund (GER) bt Yaroslava Shvedova (KAZ x4) 7-5, 6-3
Annika Beck (GER x6) bt Katarzyna Piter (POL) 6-3, 4-6, 6-3
Richel Hogenkamp (NED) bt Anna Karolna Schmiedlov (SVK x5) 6-3, 6-1
Kaia Kanepi (EST) bt Johanna Larsson (SWE) 6-2, 4-6, 7-5
Alexandra Panova (RUS) bt Alexandra Cadantu (ROM) 6-2, 7-5