Red Sox stop Royals’ win streak in 9-8 extra-inning victory

BOSTON —His palms turned to the sky, his lips curling into a smile, Lorenzo Cain stepped on home plate and turned toward teammates Alex Gordon and Whit Merrifield. A baseball had traveled 302 feet, tucking inside baseball’s most famous foul pole. A gift had fallen from the sky, landing among the fans in right field. On…