Andrea Petkovic will lead Germany in the Fed Cup playoff against the United States in April.
Julia Goerges, Sabine Lisicki and Anna-Lena Groenefeld complete the German team for the April 16-17 match in Stuttgart, Germany. The winner will advance to the eight-team World Group.
The U.S. team lost to Belgium in the first round in February without the injured Williams sisters.
Petkovic has advanced to play Maria Sharapova on Thursday in the semifinals of the Sony Ericsson Open in Key Biscayne, Fla. She's defeated top-ranked Caroline Wozniacki and Jelena Jankovic.
The 23-year-old Petkovic will break into the top 20 next week.