Barcelona defender Marc Bartra has been ruled out for up to three weeks with a hamstring strain. The 20-year-old, who has featured in Barça\'s last seven matches, suffered the injury during training on Sunday morning and, according to the Catalan giants, is set to be missing for between 15 and 20 days. That means Bartra could miss up to six matches, including this week\'s UEFA Champions League trip to Spartak Moscow. From : Fifa