MLB Rotations Reel as Severino, Mize Hit Injured List Sport By lines May 30, 2026 MLB rotations took heavy hits across four contenders on Saturday. The Athletics placed Luis Severino on the injured list. The Detroit Tigers lost Casey Mize to an injury the same day. Two more clubs reshuffled their starting pitching plans. Injuries and Demotions Reshape Four Starting Staffs The Athletics placed Luis Severino on the 15-day injured list with a right shoulder strain. Severino left his previous start after just one inning. The Tigers placed Casey Mize on the 15-day injured list with right adductor inflammation. Mize had anchored the Detroit rotation before the injury. The New York Mets demoted David Peterson to the bullpen on Saturday. Peterson earned an All-Star selection in 2025 before the move. The Mets promoted Sean Manaea into the rotation in Peterson’s place. The Minnesota Twins designated Simeon Woods Richardson for assignment. The Twins recalled rookie John Klein after designating Woods Richardson. Severino had served as a veteran anchor for the Athletics rotation. The Athletics now face a rotation gap with Severino on the shelf. The Tigers must cover Mize’s turns through the summer schedule. Severino joined the Athletics to provide veteran innings in the rotation. The right shoulder strain now clouds Severino’s outlook for June. Mize ranked as a former first overall pick from the 2018 draft. The adductor injury interrupts Mize’s run in the Detroit rotation. Peterson struggled to hold his spot despite a 2025 All-Star nod. Manaea brings veteran left-handed innings to the Mets rotation. Woods Richardson posted poor results before the Twins moved him. John Klein steps in as Minnesota’s newest rotation option. Pitching depth often decides contention across the long MLB season. Four clubs lost rotation certainty in a single Saturday. The Athletics and Tigers now lean on replacement starters. The Mets bet on Sean Manaea to stabilize their rotation. Rotation health will shape the standings through the summer months. The Athletics have not set a return timeline for Luis Severino. The Tigers face a similar wait on Casey Mize’s adductor injury. Sean Manaea makes his next Mets start in the coming days. Minnesota will audition John Klein in Woods Richardson’s old role. Related Sports Coverage Murakami Exits With Hamstring Strain, IL Stint LoomsOhtani Spins 6 No-Hit Innings, Homers in Dodgers SweepMLB Proposes Salary Cap as Lockout Threat Looms Sources: ESPN reported the Severino, Mize, and Peterson moves. MLB Trade Rumors detailed the Twins decision on Simeon Woods Richardson and the John Klein recall.
