Montgomery will move back to a relief role following confirmation that John Lackey will be able to return to the rotation Sunday against the Giants.

EDGE Analysis

He has a 2.29 ERA in 59 innings as a reliever and a 4.01 ERA in 24.2 innings as a starter this year, so it's clear what his best role is. If the Cubs were to suffer another injury in the rotation, Montgomery might be called upon again, but for now he has lost most of his value in most formats.