Racing PositionsSrna tests positive for banned substance7YPA SportShakhtar's Srna rules out Barcelona move8YESPN staffKovacic will be better than Modric - Srna8YDermot CorriganLuis Enrique: 'Barca open to strengthening'8YSam MarsdenShakhtar confirm Barca interest in Srna8YSam MarsdenWhy Srna makes sense for Barcelona8YSam MarsdenFC100: Top right-backs8YNick AmesCroatia captain Srna rejoins the squad9YAssociated PressSrna returns to Croatia for father's funeral9YESPN staff