Barcelona won their first game 3 - 0 against Elche despite Javier Mascherano 's red card just before the break .
It was business as usual for Leo Messi as he scored a double on the first day of the season for the fourth consecutive campaign .
business won their first game 3 - 0 against Elche despite Javier Mascherano 's red card just before the break .
It was business as usual for Leo Messi as he scored a double on the first day of the season for the fourth consecutive campaign .