Boston Red Sox left-hander Franklin Morales, one of the few bright spots for the team last season, is looking more and more like he’ll begin the season on the disabled list with lower back pain, manager John Farrell said, according to MLB.com.

Morales, bothered by the lower back issue, has pitched just once in spring training.

"He's kind of plateaued a little bit," Farrell said. "While he was feeling some improvement with the medication he was taking, when he was thrown out to 75, 90 feet, he started to feel some tightness there again, so we're backing off him today."

Morales was 3-4 with a 3.77 ERA (1.231 WHIP) in 76 1/3 innings last season, averaging a strikeout per inning as a situational reliever. He had one save.

Left-hander Craig Breslow also is projected to start the season on the disabled list, which creates opportunities for other relievers.

MLB.com noted that right-hander Clayton Mortensen's chances of making the team could increase.