Ryan Feltner Injury: Working through back issue

Feltner won't make his next scheduled start Sunday against the Reds while he tends to a back issue, Thomas Harding of MLB.com reports.

After turning in a seven-inning start against the Royals on Tuesday, Feltner said that he felt his back tighten up in the weight room two days later. The Rockies don't anticipate Feltner missing extensive time, as he could be ready to start as soon as Monday's series opener versus Atlanta in Colorado. Bradley Blalock was recalled from Triple-A Albuquerque and will start Sunday.