The Cubs’ rotation faces significant challenges following Cade Horton’s elbow surgery, sidelining him for the year. Opening Day starter Matthew Boyd is also on the injured list with a left biceps strain, although he is expected back soon. The team must now address key questions around their rotation to maintain playoff hopes, particularly focusing on Edward Cabrera and Shota Imanaga's performances and whether they need to seek external help.

By the Numbers
  • Cade Horton is out for the season after undergoing elbow surgery.
  • Matthew Boyd has a history of injuries and pitched 179 2/3 innings last year.
State of Play
  • Edward Cabrera has pitched 11 2/3 scoreless innings to start the season.
  • Shota Imanaga’s performance dropped in 2025, with a 3.73 ERA and a 4.86 FIP in 25 starts.
  • Javier Assad shined in his 2026 debut, throwing 5 2/3 scoreless innings.
  • Justin Steele is expected back in the first half after UCL surgery.
What's Next

The Cubs will monitor the performances of Cabrera and Imanaga closely while assessing Assad's contributions. If they struggle, the front office may explore signing free-agent Lucas Giolito to bolster the rotation. The timeline for Steele's return will heavily influence their decisions going forward.

Bottom Line

The Cubs must navigate a critical juncture in their season, relying on emerging pitchers while potentially seeking outside help if internal solutions fall short. Their playoff aspirations hinge on whether Cabrera and Imanaga can step up effectively in the absence of Horton and Boyd.