Tennis

Defending champion Daniela Hantuchova was among the quarterfinal winners Friday at the Pattaya Open, while two-time winner Vera Zvonareva was forced to retire from her match because of a hip injury.

Croatia and Japan split the opening singles matches in their first-round Davis Cup tie on Friday.

French crowd favorite Marion Bartoli was an easy second-round winner Thursday in Paris.

Former Australian Open runner-up Jo-Wilfried Tsonga will get France going Friday in its opening-round Davis Cup tie against host Canada.

Chilean star Fernando Gonzalez says he expects to retire from the ATP World Tour next month.

Last year's runner-up Argentina will battle host Germany in an opening-round Davis Cup tie this weekend.

An opening-round Davis Cup tie between the United States and host Switzerland will commence Friday when American Mardy Fish takes on Swiss slugger Stanislas Wawrinka.

Reigning champion Spain will begin defense of its Davis Cup title with a 2012 opening-round tie against Kazakhstan this week, as the festivities will get underway Friday with a singles rubber between former world No. 1 Juan Carlos Ferrero and Mikhail Kukushkin.

Defending champion Daniela Hantuchova of Slovakia and American Vania King were among the second-round winners Thursday at the Pattaya Open.

Top-seeded Russian Maria Sharapova and six- seed Julia Goerges of Germany were second-round winners Wednesday at the Open GDF Suez.