J.D. Martinez and the Red Sox are indeed sorting through a medical matter, but one that a baseball source with knowledge of the situation said would not have any effect on Martinez in the immediate future. It's unclear what the specific issue is, but a better understanding between the parties could come as early as Saturday. "I imagine that today is a day that we could have some definition," the source said. Martinez can opt out over two years, in which he would make as much as $50 million, per the originally agreed upon deal.