ST. PETERSBURG -- Left-hander Franklin Morales will make his fourth appearance of his Minor League rehab assignment on Saturday, when he again pitches for Triple-A Pawtucket.
The Red Sox are stretching Morales out as a starter in case that's the role they use him in when he returns to the active roster.
"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."