Harrison was diagnosed with a Grade 2 left hamstring strain after undergoing an MRI on Tuesday, Jason Beck of MLB.com reports.

EDGE Analysis

Harrison landed on the injured list earlier Tuesday, but the severity of his hamstring injury wasn't previously known. The 31-year-old doesn't have an official timeline for his return, but Grade 2 strains often have a recovery timetable beyond four weeks, so he should be considered out indefinitely for the time being.