Overview
- Jameson Taillon exited Sunday night’s start after signaling trainers and was diagnosed with a left hamstring strain that the Cubs say will result in an injured‑list stint pending MRI results.
- Taillon told reporters he expects an IL stay, does not believe surgery will be required, and will have imaging to determine the length of his absence.
- Recalled reliever Javier Assad replaced Taillon and threw 6.1 scoreless innings, giving the Cubs a short‑term way to cover innings and raising the possibility he could be stretched into a rotation role.
- The loss comes on top of an already thin staff that includes Cade Horton (Tommy John), Justin Steele (delayed rehab) and Matthew Boyd (meniscus surgery rehab), leaving Chicago with limited internal options.
- With Taillon struggling this season (5.19 ERA and a major‑league‑leading 20 homers allowed through his starts), the club may look to add starting pitching before the trade deadline to stabilize the rotation.