Graves (oblique) was placed on the 10-day disabled list Tuesday, Joe Frisaro of MLB.com reports.
Graves suffered a left oblique strain earlier in March, and the issue remains bothersome enough to keep the right-hander sidelined through Opening Day. At this point, it's still unclear when the Rule 5 pick may be ready to return, but a timetable should emerge once he's able to resume throwing.