Belgium goalkeeper Simon Mignolet has a right-leg injury and will miss Monday's friendly against Luxembourg, although he should be fit for the World Cup.
The Liverpool keeper had to interrupt Saturday's training session and limped off.
Since first-choice goalkeeper Thibaut Courtois was playing for Atletico Madrid in the Champions League final on Saturday and will only join the Belgium squad next week, Belgium coach Marc Wilmots called up Anderlecht goalie Thomas Kaminski.
Wilmots said in a statement that Mignolet "needs to rest four or five days."
Belgium play Algeria, South Korea and Russia in Group H at the World Cup in Brazil.