Photo: Henk KosterRoger Federer and Stanislas Wawrinka (SUI)
The draws were made on Thursday for this weekend's Davis Cup by BNP Paribas World Group semifinals and play-offs.
In absence of the injured Rafael Nadal, temporary Spanish No. 1 David Ferrer opens up for the defending champions against big serving American Sam Querrey in Gijon. The second rubber on Friday sees Nicolas Almagro face John Isner.
If USA can post an early point on the board, which is no mean feat against Spain on clay, then the tie will be perfectly poised when Marcel Granollers and Marc Lopez meet world No. 1 doubles specialists Bob and Mike Bryan on Saturday.
The final day of this intriguing clash begins with the No. 1 players, Ferrer and Isner, going head-to-head, with Almagro and Querrey completing the action should the tie go to a deciding fifth rubber.
Juan Martin del Potro and Radek Stepanek are getting the other semifinal between Argentina and Czech Republic under way in Buenos Aires, before Juan Monaco and Tomas Berdych follow on Friday.
Carlos Berlocq and Eduardo Schwank team up together in Saturday's doubles rubber, while Ivo Minar and Lukas Rosol have been nominated for the Czechs. However, if history is anything to go by then expect to see Berdych and Stepanek step into the line-up.
The reverse singles rubbers on Sunday begin with del Potro taking on Berdych, then Monaco is scheduled to meet Stepanek. A spot in the Davis Cup by BNP Paribas Final is at stake against the winner of the Spain v USA tie.
Eight World Group play-off ties are also taking place this weekend. The pick of them looks to be the evenly matched contest in Hamburg where Germany host an Australian team that features Bernard Tomic and Lleyton Hewitt.
World No. 1 Roger Federer is also in action for Switzerland alongside teammate Stanislas Wawrinka. The Swiss are up against Netherlands in Amsterdam as they bid to retain their place in the World Group.
Click the links below to follow the action from each World Group semifinal and play-off tie.
World Group semifinals
- Spain v USA
- Argentina v Czech Republic
World Group play-offs
- Kazakhstan v Uzbekistan
- Germany v Australia
- Japan v Israel
- Belgium v Sweden
- Canada v South Africa
- Brazil v Russia
- Italy v Chile
- Netherlands v Switzerland