He was hurt in the seventh inning Tuesday night when he got hit in the helmet by Hector Sanchez's backswing. He departed a few pitches later.
The Rockies also reinstated left-hander Mike Dunn from the 10-day disabled list on Wednesday, selected the contract of catcher Ryan Hanigan from Triple-A Albuquerque and optioned right-hander Carlos Estevez to Triple-A.
Dunn was placed on the DL on April 26 with back spasms. He is 2-0 with a 1.17 ERA in 10 appearances.
Hanigan, 36, was signed to a minor league contract on March 28 after being released by the Philadelphia Phillies.
Estevez had appeared in 13 games with Colorado, going 3-0 with a 7.94 ERA.