Overview

• Horton left after three innings against the Mets at Wrigley Field with back tightness following 29 pitches, which included a leadoff homer by Francisco Lindor.
• Chicago described the removal as precautionary, and his night-ending exit could mark his final regular-season appearance.
• Manager Craig Counsell has not set his Wild Card rotation, and the schedule would allow Horton to start Game 1 or Game 2 if he is cleared.
• The Cubs have recently used a six-man rotation, preserving options if Horton requires extra rest.
• If Horton is held back, left-handers Matthew Boyd or Shota Imanaga are positioned as leading alternatives for the series opener.