"In talking to [pitching coach Chris Bosio], he thought it was good to set Jake back a little bit," Cubs manager Rick Renteria said. "We know he's come off the injury early in the season. he's been throwing very, very well. He said, 'You know, let's push him back and give him a little rest.' I thought it was a good idea."
Arrieta was the only Cubs starter who did not reach 100 innings in the first half.
Carrie Muskat is a reporter for MLB.com. She writes a blog, Muskat Ramblings, and you can follow her on Twitter @CarrieMuskat. This story was not subject to the approval of Major League Baseball or its clubs.