CHICAGO _ Jose Quintana will get extra rest, giving him an 11-day break before Sunday's start against the Cardinals.
"Normal fatigue," Maddon said. "He just seemed to be fatiguing a bit _ nothing awful."
Concern over Quintana's arm was enough to push him back despite the fact that Kyle Hendricks and Jon Lester made their first starts of the second half on normal four days' rest.
Maddon also said that the extended break allowed Quintana to work with pitching coach Jim Hickey on a couple of issues, specifically polishing a new grip on a changeup.
Quintana returns after one of his most impressive starts this season, pitching six innings of three-hit ball in a 2-0 win over the Giants on July 10.
The Cubs are in the midst of playing 12 games in 11 days, and they embark on a 23-game journey without a scheduled day off until Aug. 21.
