The Dodgers placed Graterol on the 15-day injured list Thursday with right shoulder inflammation.
Graterol dealt with a side injury late last week but will land on the IL with a shoulder issue just before the All-Star break. It's not yet clear how much time the Dodgers expect him to miss, as the right-hander is scheduled to undergo an MRI in Los Angeles on Friday, according to Bill Plunkett of The Orange County Register, as the team looks to glean a clearer sense of the severity of the injury.