Lopez allowed a run in four innings Wednesday night before
leaving the game with tightness in his right elbow. He missed his
start Sunday in Arizona because of inflammation in his right elbow.
Lopez was 1-0 with a 1.59 ERA in three starts.
"It was the smart thing and the right thing to do," said
Colorado manager Clint Hurdle.
To fill the roster spot, the Rockies purchased the contract of
right-hand pitcher Matt Herges from Triple A Colorado Springs.
Herges pitched 5 2/3 innings in four relief appearances at Colorado
The Rockies have been bitten hard by the injury bug this week. On Monday, they placed pitcher Byung-Hyun Kim
on the 15-day disabled list with a thumb injury. And on Sunday, infielder Kaz Matsui went to the 15-day DL with back spasms.