Jamie Hampton and Varvara Lepchenko play their first Fed Cup matches this weekend, taking the U.S. singles spots against Italy.
Karin Knapp defeated top-seeded Monica Niculescu in Tuesday's final first-round match at the WTA's Tashkent Open in Uzbekistan.
Kaia Kanepi ousted top-seeded Roberta Vinci and will play Carla Suarez Navarro in the title match of the Estoril Open tennis tournament in Portugal.
Top-seeded Roberta Vinci needed a third set Thursday before advancing to the semifinals of the Estoril Open tennis tournament in Portugal.
Second-seeded Maria Kirilenko led a perfect day for seeded players Tuesday at the Estoril Open tennis tournament in Portugal.
No. 1 seed Marina Erakovic and fifth-seeded Gisela Dulko were both ousted Thursday in the second round of the Copa BBVA Colsanitas.
Italy's Karin Knapp staged a major upset Tuesday, bouncing second-seeded Alexandra Dulgheru of Romania in first-round action at the XX Copa BBVA Colsanitas.
Top-seeded Vera Zvonareva breezed into the semifinals of the $175,000 Guangzhou International Women's Open tennis tournament in China.
Jill Craybas and Karin Knapp each picked up second-round upset wins Wednesday at the $175,000 Guangzhou International Women's Open tennis tournament in China.
Top-seeded Maria Sharapova beat Karin Knapp in straight sets Saturday to advance to the women's fourth round at the French Open tennis tournament in Paris.