Costa important for Spain, coach Del Bosque says

Spain coach Vicente del Bosque believes Diego Costa has an important role to play for the European champions despite the Brazil-born forward's slow start on the international stage and his slump in form for club Chelsea. After Costa chose La Roja over his native Brazil last year, he was expected to reproduce the form that made him one of the most feared strikers in Europe during his stint at Atletico Madrid and his first season in England. Playing for Spain, he has often appeared lost, toiling u