Test carried out on the first team player Sergio Agüero have confirmed a tendon injury in his right calf. The player will be out of a action for around 10 weeks.
The Argentine striker signed for Barça on 31 May and after winning the Copa América with Argentina he began training as a Barça player at the Ciutat Esportiva.
First session of the week for Koeman's squad
On Monday the squad trained at the Ciutat Esportiva, a post game session following the 3-0 win over Juventus in the Gamper Trophy game.
It was the first session of a week that sees the beginning of the La Liga season with a game against Real Sociedad at Camp Nou. The squad will have a rest day on Tuesday and return to training on Wednesday at 9.15am CEST.