Belt is out of the starting lineup for Tuesday's matchup with the Rockies, Henry Schulman of the San Francisco Chronicle reports.
Between Belt's recent struggles at the plate (no hits in his last 18 at-bats) and the fact that he was hit in the helmet with a pitch Sunday, it seems the Giants want to give Belt a bit more rest as they gear up for a postseason push. Buster Posey will slide over to first base to cover his absence.