Chicago Cubs starting pitcher Cade Horton looked distraught Friday afternoon in Cleveland when he walked off the field in the second inning of his start against the Guardians, suffering from what was described as “forearm discomfort.” Moments earlier, he had indicated to the dugout that things didn’t feel right, physically.
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“I just wanted to be smart about it,” Horton said. “I’ve been in this spot before and I’ve taken the other route where I keep going, and it ends up being worse. So, I just tried to make a mature decision and end it there.”
The 24-year-old was expected to do big things this year after a breakthrough rookie season in 2025 that saw him perform as, arguably, the best pitcher in all of baseball after the All-Star break.
Manager Craig Counsell told media after the game that Horton to will get imaging to see the extent of the injury and will also be placed on the 15-day IL as he’s being assessed.
Who could take Horton’s spot?

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Now, however, the talk must turn to the future. Specifically, how to fill the young arm’s spot in a Cubs rotation that needs the kind of impact starter Horton was expected to be.
Veteran Colin Rea was brought in to replace Horton on Friday and it’s thought that he’ll likely be the full-time replacement until the team knows what’s in their injured pitcher’s immediate future. Last season, Rea was solid as the team’s full-time rotation fill-in, posting a 10-7 record with a 4.33 ERA in 27 starts.
Chicago also has Ben Brown and Javier Assad as possible rotation fill-ins.
Then, of course, ace Justin Steele is slated to return some time before mid-season.
But if Horton is lost for any extended period of time, the Cubs may have no choice but to reach out and try to pick up somebody outside of the organization.
Some people already have an idea of who that outside pickup should be—Lucas Giolito.
Lucas Giolito to the rescue?

In the Friday night edition of MLB Tonight, the host brought up that exact possibility:
“I keep reminding myself that Lucas Giolito is still sitting out there without a team,” he said, following the segment talking about Horton’s injury.
“He might be a Cub,” replied analyst Harold Reynolds.
Jacob Zanolla of Bleacher Nation also brought up the Giolito possibility:
“The Cubs could look to someone outside of the organization, and there does happen to be one (relatively) legitimate arm still available: Lucas Giolito.
Giolito, 31, made 25 starts for the Red Sox last season, pitching to a 3.41 ERA over 145.0 IP. But while that seems encouraging, a quick peek under the hood reveals the more troubling peripherals that are probably conspiring to keep him a free agent this long: 5.01 xERA, 4.17 FIP. But in terms of emergency fill-in options, you could do a whole lot worse than Giolito.”
Last season with the Red Sox, the 31-year-old Giolito had a good year, stats-wise. But, as Zanolla mentions, maybe the raw numbers don’t tell the full story of what’s under the 9-year veteran’s hood. There has to be a reason, after all, why he’s still unsigned when starting pitching is such an MLB-wide priority.
It remains to be seen whether he’d even be much of an upgrade over the pitchers the Cubs already have lined up as fill-ins.
But he’s somebody definitely worth looking into for a Cubs rotation already showcasing some weakness just days into the season.
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