Cook, the team's Opening Day starter, was shut down for the year
when he re-injured his left abdomen in a rehab start Saturday night. Rockies manager Clint Hurdle made the announcement Sunday before the team's 4-3 win at Arizona.
Cook had not pitched since Aug. 10, and he was placed on the 15-day disabled list on Aug. 20. The Rockies had hoped to bring him back after a rehab start for Triple-A Colorado Springs on Saturday, but he left the game after 27 pitches.
Cook was 8-7 with a 4.12 ERA. He was 3-1 with a 2.41 ERA after
the All-Star break.
The 25-year-old Hirsh broke his right fibula when he was hit by a line drive off the bat of Milwaukee's J.J. Hardy on Aug. 7. Hirsh shook it off and pitched six innings to get the win. The next day, X-rays showed a fracture in the right fibula, the thin bone on the outside of his lower leg. He went on the disabled list Aug. 9.
Hirsh said he had another X-ray on Tuesday that showed the leg
was healing, but doctors and trainer Keith Dugger decided later that day for him to shut him down for the rest of 2007.
"The doc and Duggie talked and they felt there was not enough for me to get to where I need to be by the end of the year," Hirsh said.
Hirsh came to the Rockies in an offseason trade with Houston. He
started 19 games this season, going 5-7 with a 4.81 ERA in 112 1/3 innings.
Hirsh said the decision to end his season was out of concern for his arm, not his leg.
"They're worried about me altering my mechanics and possibly injuring my arm," he said.