The field for the 31st edition of the ARAG ATP WORLD TEAM CUP is now complete after tournament organisers granted the wild card to last year's finalists, the Czech Republic, to be represented by Tomas Berdych and Jiri Vanek.

With World No. 10 Berdych's addition to the field, the 2008 Championship will now feature four of the world's Top 10 players, including No. 5 David Ferrer of Spain and No. 6 Andy Roddick and No. 8 James Blake of the United States.

The 22-year-old Berdych will be making his fourth straight appearance in Duesseldorf. He has a 12-8 event match record (7-3 in singles), and last year led his country into the final where they came up just short against Argentina.

31st ARAG WORLD TEAM CUP – Participating nations:
1. USA (Andy Roddick, James Blake)
2. Spain (David Ferrer, Nicolas Almagro)
3. Russia (Mikhail Youzhny, Igor Andreev)
4. Argentina (Guillermo Canas, Juan Ignacio Chela)
5. Germany (Philipp Kohlschreiber, Nicolas Kiefer)
6. Italy (Potito Starace, Filippo Volandri)
7. Sweden (Robi Soderling, Thomas Johansson)
8. Czech Republic (Tomas Berdych, Jiri Vanek)

The ARAG WORLD TEAM CUP will take place on May 18-24, 2008 at the Duesseldorf Rochusclub. At the 31st edition, a tie will be played over two days so that every team will now play on every day from Sunday through Friday.