PASADENA, Calif. (AP) — Manchester United made an impressive debut under coach Louis van Gaal on Wednesday night, with Wayne Rooney scoring twice late in the first half of a 7-0 victory over the LA Galaxy. Ashley Young and unsung defender Reece James scored two second-half goals apiece as United opened its summer tour with a surprisingly polished win over MLS' overmatched Galaxy in the Guinness International Champions Cup. Danny Welbeck scored the first goal for Van Gaal, who has had limited work with his new club after leading the Netherlands to a third-place finish at the World Cup earlier this month.