Overview
- Bill Moriarity of A’s Farm reported that 19-year-old infielder Leo De Vries is scheduled for right-shoulder anterior labrum surgery on Sept. 13 and is expected to be sidelined about eight months.
- The eight-month recovery effectively rules out any 2026 debut for De Vries and likely pushes his earliest big-league readiness to roughly May 2027 after rehab and minor-league ramp-up.
- Pitching prospect Jamie Arnold was struck in the face by a 107+ mph comebacker on Sept. 9, walked off the field, was hospitalized and diagnosed with intra-orbital and maxillary sinus fractures that reportedly will not require surgery.
- Together the injuries remove two of Oakland’s top internal options and increase pressure on the club to pursue infield and roster help in the coming offseason and to manage 40-man decisions carefully.
- De Vries was the centerpiece of the July 2025 Mason Miller trade and entered 2026 as one of baseball’s highest-ranked prospects, so his delayed timeline is a major development for the A’s long-term plans and player-development outlook.