he Miami Marlins knew their young pitching staff would be a work in progress this season. But no one expected major changes a day before the season opener. The Marlins this morning announced that 20-year-old super-prospect Jose Fernandez, a right-hander, will be on the opening day roster because of shoulder injuries to starters Nathan Eovaldi and Henderson Alvarez. Fernandez, who finished last season with Class A Jupiter, will start next Sunday’s game against the Mets in New York. The pitching matchup for Monday’s opener at Washington (1:05 p.m., FSN) is Ricky Nolasco — the only returning veteran in Miami’s rotation — against Stephen Strasburg.