The Padres optioned Jacob to Triple-A El Paso on Saturday.
Padres manager Mike Shildt said Sunday that Jacob (elbow) has no lingering health concerns as spring training gets underway, AJ Cassavell of MLB.com reports.
Jacob (elbow) was transferred to the 60-day injured list Friday.
MRI results revealed a minor flexor strain and a minor UCL sprain in Jacob's right elbow, Jeff Sanders of The San Diego Union-Tribune reports.
Jacob was placed on the 15-day injured list with right elbow inflammation Saturday.
The Padres selected Jacob's contract from Double-A San Antonio on Friday, Jeff Sanders of The San Diego Union-Tribune reports.
Jacob is out with a right shoulder injury, Sam Dykstra of MLB.com reports.