The team called up left-handed pitcher Edward Paredes from Triple-A Oklahoma City while Darvish is out. Roberts expects to have the right-hander back with the Dodgers to make a start on Aug. 27.
"My initial reaction after the last outing was that I felt like I could make the next start," Darvish said. "However, after talking to the team and consulting with the doctor, I understand their concern and I respect that opinion. I will make sure to get treatment and rest to get ready for [my] next start."
Darvish was acquired from the Rangers at the non-waiver Trade Deadline in exchange for three Minor Leaguers, and made three starts for Los Angeles before being lifted with back tightness after the sixth inning in a 5-4 win over the White Sox on Aug. 16. He's compiled a strong 2.50 ERA in three starts with Los Angeles, striking out 22 batters over 18 innings of work.
With the team headed to Pittsburgh for a four-game series, Darvish will miss Tuesday's game against the Pirates. While the righty feels like he's fine to start in a game, Roberts said that it's just not something the team wants to play around with.
"We're trying to do what's best for him," Roberts said. "If there's any kind of thought to his back being sore or stiff, for us to run him out there doesn't make a whole lot of sense, where we're at."
A setback for Dayton
The Dodgers are being cautious with left-handed reliever Grant Dayton. Already on the disabled list, he was flown back to Los Angeles for further testing after experiencing elbow soreness while throwing a bullpen session.
"As I understand it, he was taking warmup throws and felt some pain in his elbow," Roberts said. "We flew him back, he left this morning. We're going to get some pictures taken and we'll see where we go from there."
Dayton has been on the disabled list since July 28 with neck stiffness, and was hoping to return to the team on Sept. 1. However, with the elbow soreness cropping up, the Dodgers will have to put hopes of his return on hold for now -- or at the very least, until test results come in. The 29-year-old is in his second year with the Dodgers, but has struggled with command issues, walking 12 batters over 23 2/3 innings of work.
Catherine Slonksnis is a contributor to MLB.com.
This story was not subject to the approval of Major League Baseball or its clubs.