"Well, he'll likely get to four innings [on Saturday], and if we don't change course with his role, we'd like to get him to a minimum of five before we'd look to do something back here," manager John Farrell said.
If Morales was definitely going to be back as a reliever, the Red Sox likely already would have activated him.
"We'll kind of evaluate things in five-day increments," Farrell said. "Not only with his progression, but with what's taking place here. If the need were to arise [in the bullpen], that's a possibility. We're staying the course right now on him starting."
Ian Browne is a reporter for MLB.com. Read his blog, Brownie Points, and follow him on Twitter @IanMBrowne. This story was not subject to the approval of Major League Baseball or its clubs.