"He's got a severe strain in the area between the calf and the Achilles' tendon in his left leg," federation doctor Angel Ruiz-Cotorro told the RFET Web site (www.rfet.es).

"He needs to rest for five or six days and take anti-inflammatories before a new evaluation so he has been ruled out of the trip to Peru."

Davis Cup captain Emilio Sanchez Vicario called up world number 37 Feliciano Lopez [ Images ] to take Ferrer's place for the first-round tie which will be played on clay at the Jockey Club in Lima from Feb. 8-10.

Tommy Robredo [ Images ], Fernando Verdasco [ Images ] and Nicolas Almagro make up the rest of the team.

World number two Rafael Nadal [ Images ] and Juan Carlos Ferrero [ Images ] both opted out of the tie in order to concentrate on the hard court season.