There are no health issues with Anderson, but the rookie threw just 88 innings for Triple-A Reno last year and is already up to 93 1/3 innings this year between Double-A Mobile and the big leagues. With that in mind, the team wants to be proactive in limiting his innings where it can.
Anderson will start the D-backs' fifth game after the break on July 22 against the Tigers at Chase Field, meaning he will pitch on 14 days of rest instead of the usual four.
"I think part of it is to address his innings and keep them under control," D-backs manager Kirk Gibson said. "The other thing is to give him a break and give him time to recover. It makes sense. You get too fatigued and one of the thoughts is you risk injury. We're giving him some time off physically as well as mentally. Hopefully, he gets back into the second half here and throws the ball well for us."