Thomas Vermaelen has suffered a fresh injury setback at Barcelona.
The former Arsenal defender joined training for the first time last week at La Masia.
Barcelona's medical team issued a report on Sunday morning to inform that the Belgian defender has suffered an injury to his right hamstring and his progress will determine when he can return to training.
Vermaelen has managed just a fleeting appearance for Barca B in a friendly against Philippines U19 since his summer arrival.
