Rafael Devers hit a grand slam and Rick Porcello pitched six scoreless innings to lead the Boston Red Sox to their second straight rout of the Los Angeles Angels in a 9-0 win Wednesday night at Angel Stadium. One night after their 10-1 win, the Red Sox improved their major league-best record to 15-2, their best mark through 17 games in the 118-year history of the franchise. Boston joined the 2003 San Francisco Giants as the only teams since 1987 to begin a major league season 15-2.