Greene (elbow) will be out for 12-to-18 months after undergoing his second Tommy John surgery Wednesday, Gordon Wittenmyer of The Cincinnati Enquirer reports.
The Reds had previously disclosed that Greene would require another operation on his elbow, and he ended up needing a full Tommy John repair. The right-hander's first Tommy John surgery came back in 2019, and he also had a procedure on his elbow earlier this year to remove bone chips. Greene will be out through the end of the 2027 season.