Rafaela remains out of the starting lineup for the second game of Friday's doubleheader against the Cubs, Ari Alexander of 7 News Boston reports.
Right hamstring tightness forced Rafaela from Wednesday's game -- his very first game back from a right quad strain -- though he was back in the lineup Thursday. He may be dealing with some lingering effects of the hamstring injury. It's also possible the Red Sox are just playing it safe with their playoff seeding now set.