Aug 8th, 2009 | 2:50 pm |

ESPNCHICAGO.COM  reports that Carlos Zambrano is headed to the disabled list with more back problems.  Zambrano was slated to pitch against the Rockies on Friday night but during warm ups elected to not make the start. Sean Marshall started the game, with the Cubs losing 6-2, after Marshall surrendered three runs in the first inning.

With the loss the Chicago Cubs are one game behind the St. Louis Cardinals in the Central Division and two games behind Colorado and San Francisco in the Wild Card standings.  The Cubs play the Rockies Saturday night at 8:10 ET, Ryan Dempster will start for the Cubs while Jason Marquis will get the start for the Rockies