Sweden will begin their World Cup finals campaign against Trinidad & Tobago without first choice goalkeeper Andreas Isaksson.

The Rennes custodian suffered concussion when he was hit in the face by a shot from Kim Kallstrom during training on Wednesday and doctors have told him he will not be able to play in Saturday's Group B clash in Dortmund.

Isaksson will be sidelined for up to five days by the problem, but is expected to be fit to face Paraguay and England.

The 24-year-old's absence has presented coach Lars Lagerback with a major problem as his other goalkeepers have just two caps between them.

Ex-Arsenal reserve Rami Shaaban made his Sweden debut as a substitute in a friendly against Finland last month, while Viborg's John Alvbage made his only international appearance in a goalless draw against Jordan in January.