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Cubs Place Ian Happ on IL, Promote Top Prospect Moisés Ballesteros

The Cubs address Ian Happ's oblique injury by calling up Moisés Ballesteros, their No. 4 prospect, to bolster offensive depth while reshuffling their roster.

CHICAGO, ILLINOIS – APRIL 5: Ian Happ #8 of the Chicago Cubs receives a standing ovation in recognition of his 1000th career game in the bottom of the first inning in a game against the San Diego Padres at Wrigley Field on April 5, 2025 in Chicago, Illinois. (Photo by Matt Dirksen/Chicago Cubs/Getty Images)
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MESA, ARIZONA - MARCH 9: Moises Ballesteros #75 of the Chicago Cubs runs during a Spring Training game against the San Francisco Giants at Sloan Park on March 9, 2025 in Mesa, Arizona.
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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.