The Red Sox placed Whitlock on the 15-day injured list Wednesday with a left oblique strain, Mac Cerullo of the Boston Herald reports.

EDGE Analysis

Whitlock suffered the injury during Tuesday's start against the Guardians. Manager Alex Cora suggested that Whitlock is dealing with a low-grade strain, and the Red Sox are hopeful that the right-hander will be ready to return from the IL when first eligible. It's not yet clear who will take Whitlock's spot in the rotation, but Chase Anderson is a candidate.