Overview

• Manager Craig Counsell said Horton is "on track" and "a go" even as Wednesday’s MRI showed areas of concern in his ribs.
• Horton is scheduled to resume throwing on Friday following a two-day shutdown after exiting Tuesday’s start with back tightness.
• The Cubs plan no further tests but will have another physician review the MRI to ensure it is safe for him to pitch.
• Team officials link the discomfort to recent illness and coughing that affected his back and rib area during deep breaths.
• Chicago will finalize its postseason rotation next week with multiple scenarios in play for the Padres series, with options that include Matthew Boyd and Shota Imanaga.