Masataka Yoshida put the Boston Red Sox up 4-2 with his two-run, two-out homer in the sixth before the Houston Astros walked off with a 5-4 victory on Monday. Yusei Kikuchi made his third start for the Astros but did not factor in the result after striking out seven and surrendering three runs, one earned, on six hits and a walk in 5-2/3 innings. The left-handed-hitting Yoshida did not face Japanese compatriot Kikuchi and only entered the lineup as a pinch-hitter after the southpaw, acquired last month from the Toronto Blue Jays, left the mound at Minute Maid Park. The Astros made four errors …