Miami Marlins left-hander Josh Simpson (elbow) will have surgery on Tuesday to fix ulnar-nerve neuritis in his left elbow. He's expected to miss three months before returning to play. The 26-year-old southpaw reliever will attempt to return in the second half of the 2024 season. The team's No. 26 prospect, per MLB Pipeline, suffered the injury in spring training and was trying to rehab it, but in the end, surgery was necessary. The former 32nd-round selection in 2019 out of Columbia University had a 4.42 ERA and 1.55 WHIP with 27 walks and 66 strikeouts in 38 2/3 innings pitched over 28 relief appearances with Single-A Jupiter and Triple-A Jacksonville in 2023. Simpson gets a lot of whiffs, but he's also seen his walk rate rise in recent seasons.