Though manager Jim Tracy did not confirm it Saturday, rookie starting pitcher Christian Friedrich described the results of his MRI on Friday evening as season-ending.
"Stress fracture, lower back, right side, done for the year," Friedrich said.
Friedrich was scheduled to start Sunday after having his original Thursday start postponed because of back soreness.
"He went out to throw a bullpen yesterday, and the bullpen did not go well," Tracy said before Saturday's game with the Giants. "I didn't hear that term [season-ending] mentioned to me. The way it was presented to me this afternoon by [head athletic trainer Keith Duggers] is that there is no timetable at this juncture. My understanding is he's going to seek another opinon. We'll have more information at that time."
A second blow came when right fielder Michael Cuddyer joined Friedrich on the disabled list with a strained right oblique.
"I felt it running out that double," Cuddyer said of the injury he sustained Tuesday. "I had it on the left side about 10 years go. That was much worse."
The Rockies had hoped Cuddyer could improve with a couple of days' rest, but the improvement has been slow enough that they put him on the DL retroactive to Wednesday and activated Matt McBride, who was in the lineup making his big league debut at first base Saturday.
"He's not any worse than he was a couple days ago when I reported that he was feeling discomfort in his right side," Tracy said. "He took batting practices yesterday. He took some swings both in the cage and on the field. He wasn't able to let it go like he wanted to, and so rather than push this, we just felt that it was the smartest thing to do to go ahead and back off now and get him the extra days so we can get him back out on the field."
Having experienced an oblique injury before, Cuddyer was confident this injury was not nearly as serious.
"I'll be ready when the 15 days are up," Cuddyer said.