Javier Mascherano did not train with his team-mates on Friday after suffering a calf injury against Juventus.
The Argentine is not expected to play against Real Sociedad on Saturday now and is hoping to be back to face Juve again at Camp Nou on Wednesday April 19.
In Friday's session Luis Enrique used three Barcelona B players - Marc Cardona, Carles Alena and Marlon - while Arda Turan was also involved after injury.