Delay recently underwent surgery to repair the meniscus in his right knee, Alex Stumpf of MLB.com reports.

EDGE Analysis

Delay is expected to be ready to resume baseball activities in six weeks and it figures to be several weeks after that before he might be ready to return to the Pirates. Pittsburgh is currently using Henry Davis and Joey Bart as its catching duo, but Yasmani Grandal (foot) recently began a rehab assignment.