Hyun-jin Ryu MRI shows no structural damage in back

GLENDALE, Ariz. -- Dodgers starter Hyun-jin Ryu was held out of workouts for a second consecutive day on Thursday with back tightness, but the team got some good news in that an MRI showed no structural damage.

Ryu said he was confident his back problem isn't serious, and chalked it up to back spasms, something he said he has dealt with the last few years, but usually comes and goes within three days.

"It's just a part of my conditioning," Ryu said. "I'm feeling good."

There isn't yet a timetable for Ryu to return to the mound, but he could be ready with a few days.

"I don't think there will be a dramatic change [to my schedule], and even if there is a change it will just be a few days at most," Ryu said.

Manager Don Mattingly said Thursday there is a rotation order in place for Cactus League games, which start next Wednesday, but depending on Ryu's back and Zack Greinke's elbow (Greinke threw his scheduled bullpen today) that may change. But as far as regular season readiness, Ryu for now remains on track.

"As long as there isn't anything wrong structurally, we're not worried," Mattingly said. "I don't think any of us are worried about the timetable. If it would linger and go on and on, it would start to mess with his schedule."