Barcelona's Adriano out injured for 10 days

European champions Barcelona said on Tuesday that left-back Adriano will be out of action for around 10 days.He tore the femoral biceps muscle in his left leg during a training session of the Brazilian national team last week. He will miss Barca's upcoming matches against Zaragoza and AC Milan.Adriano, 27, was bought by Barca from Sevilla in 2010, and has been used in various positions by coach Pep Guardiola.Barca are also worried about the physical condition of midfielder Javier Mascherano, who was limping at the end of Argentina's 1-1 draw at home to Bolivia on Friday.Barca have suffered a plague of muscle injuries this season. Their other injury victims at the moment are midfielder Ibrahim Affelay and striker Pedro.