Cody Ross has been dealing with contact issues due to the dry climate in Arizona.
Luke Gregerson gave up hits to all four Giants he faced and took a blown save and a loss on Wednesday.
Tyson Ross struck out all five Giants he faced out of the pen on Wednesday.
Braves pitching prospect Sean Gilmartin has been placed on Triple-A Gwinnett's disabled list due to shoulder tendinitis.
Cody Ross delivered a pinch-hit three-run homer off Mike Dunn in the bottom of the eighth to lead the Diamondbacks past the Marlins on Wednesday.
The Rockies will option Jeff Francis to Triple-A Colorado Springs prior to Thursday's game.
Josh Collmenter allowed just one hit over six scoreless innings and struck out seven in relief of an injured Trevor Cahill against the Marlins on Wednesday.
Heath Bell gave up a homer in a fourth straight appearance Wednesday, yet he still picked up his 13th save against the Marlins.