A struggling Angels offense exorcised its frustrations in a big way Saturday night, putting up an incredible 21 runs in a 21-2 rout of the Red Sox at Fenway Park. The Halos’ 21 runs are the most scored by any Major League team this season and marked the first time a team has scored at least 20 times in a game since the Astros beat the Diamondbacks, 21-5, last Oct. 2.