CHICAGO: The Chicago Cubs spent much of September benefiting from the emergence of Cade Horton.
Now, as the postseason approaches, they must prepare without him.
Horton will not be available to open October, removing an important young pitching option from the roster at the most demanding point of the season.
The development introduces another challenge for manager Craig Counsell, who must determine how to organize his rotation and bullpen for the Wild Card Series.
Why Horton's absence matters
Postseason baseball places enormous pressure on starting pitchers.
A poor opening inning can change an entire series.
Managers must also determine when to remove a starter and which relievers can handle the most demanding matchups.
Horton had demonstrated that he could contribute during meaningful late-season games.
His victory against Pittsburgh during the September playoff push provided one encouraging example.
Without him, Chicago loses another option for the innings when games remain close.
The rotation must adjust
The Cubs still possess established starting pitchers.
Shota Imanaga and Matthew Boyd are among the arms Counsell can use as the postseason begins.
But October requires more than two effective starters.
A club may need additional pitching when games move into extra innings or when an early starter struggles.
Horton's absence reduces that flexibility.
The bullpen may face additional responsibility.
Why depth becomes decisive
Successful postseason teams rarely avoid injuries entirely.
The challenge is assembling enough depth that the absence of one contributor does not undermine the entire pitching plan.
Chicago has been attempting to develop a roster capable of managing those circumstances.
Horton's unavailability will test that preparation.
Counsell must identify the most effective combinations and avoid allowing one absence to dictate every decision.
October remains the objective
The Cubs have secured their postseason berth.
Their regular-season accomplishments remain meaningful.
But the postseason presents a new assignment.
Chicago must now compete against strong opponents without one of the pitchers who helped the club reach this position.
Horton's emergence provided optimism about the future.
His absence adds uncertainty to the present.