Overview
- Ian Happ has been placed on the 10-day injured list retroactive to May 10 due to a left oblique strain sustained during a game against the Mets.
- Moisés Ballesteros, the Cubs' No. 4 prospect and a standout at Triple-A Iowa with a .368/.420/.522 slash line, has been promoted to the major league roster.
- Ballesteros is expected to primarily serve as the designated hitter, reflecting concerns about his defensive readiness as a catcher.
- To make room on the 40-man roster, pitcher Tyson Miller was transferred to the 60-day injured list due to a hip injury and a recent rehab setback.
- The Cubs continue to rely on their depth and top prospects to navigate injuries, having already lost key pitchers Justin Steele and Shota Imanaga earlier this season.