PARIS (AP) - Bothered by her surgically repaired left wrist, 12th-seeded Madison Keys of the United States was upset in the French Open's second round 3-6, 6-3, 6-1 by 290th-ranked qualifier Petra Martic of Croatia.
Martic was the lowest-ranked woman in the second round at Roland Garros.
Keys made 51 unforced errors, 31 more than Martic.
The American's wrist was checked by a trainer after the second set. Keys missed the start of this season after having an operation on the wrist.