The Tigers announced earlier Thursday that they recalled the injury rehabilitation assignment of Nathan and that he would remain on the disabled list.
In a corresponding move, the Tigers recalled the contract of right-hander Alex Wilson from Triple-A Toledo.
Nathan is likely headed for Tommy John surgery after leaving his Triple-A relief appearance on Wednesday following just ten pitches. He was scheduled to throw 25 pitches.
Detroit placed Nathan on the 15-day disabled list earlier this season with a right elbow flexor strain. He only pitched in one game this season, earning a save for the Tigers before being placed on the DL.
He has a career record of 62-34 and is MLB's active leader in saves with 377.
- Scooby Axson