Olmos is dealing with a hamstring strain and will be re-evaluated Tuesday, Michael Silverman of MLB.com reports.

EDGE Analysis

The southpaw has been impressive in six games with the Red Sox this spring, allowing just one run across 7.2 innings while striking out 11 and walking two. Consider the 26-year-old day-to-day until he is re-evaluated. He has been staking his case to make the crowded Boston bullpen, but this setback will likely see him start the year with Triple-A Norfolk.