Cooper Criswell
SEA · P · Right Shoulder Strain
60-day IL · rehab assignment
Projected return
Mon, Aug 10, 2026
Jul 30→Aug 10→Aug 20early · projected · late
Prediction updated Jul 29, 5:47 AM UTC
What's moving this
Hover for details · ↑ sooner · ↓ later
Sooner
- Similar past cases
- On rehab assignment
- Positive news
Later
- Past injuries
Recent news
2026-07-04 · espn_injuries
The move opens up a spot on the 40-man roster that the Mariners needed for Miles Mastrobuoni, whose contract was selected from Triple-A Tacoma after Julio Rodriguez (concussion) was placed on the 7-day IL. Criswell was diagnosed with a Grade-1 pectoral strain in mid-June but has since been tagged with a shoulder strain. The move to the 60-day IL doesn't change his projected return for early August, though a clearer timeline will be established once Criswell embarks on a rehab assignment.
2026-07-04 · espn_injuries
The move opens up a spot on the 40-man roster that the Mariners needed for Miles Mastrobuoni, whose contract was selected from Triple-A Tacoma after Julio Rodriguez (concussion) was placed on the 7-day IL. Criswell was diagnosed with a Grade-1 pectoral strain in mid-June but has since been tagged with a shoulder strain. The move to the 60-day IL doesn't change his projected return for early August, though a clearer timeline will be established once Criswell embarks on a rehab assignment.