Hunter announced Wednesday that he has officially retired from baseball, Britt Ghiroli of The Athletic reports.
The Mets Anthony DiComo of MLB.com Hunter on Tuesday, source reports.
Hunter was designated for assignment by the Mets on Saturday, Bob Nightengale of USA Today reports.
Hunter (0-1) took the loss Thursday as the Mets fell 13-10 to Atlanta, giving up three runs (two earned) on a hit and a walk over two-thirds of an inning.
The Mets reinstated Hunter (back) from the 15-day injured list Wednesday, Anthony DiComo of MLB.com reports.
Hunter (back) is beginning a rehab assignment Friday with Triple-A Syracuse, Will Sammon of The Athletic reports.
Hunter (back) is throwing live batting practice Tuesday, Anthony DiComo of MLB.com reports.
Hunter was placed on the 15-day injured list Tuesday with back spasms.
The Mets selected Hunter's contract Monday.
Hunter has made the Mets' Opening Day roster, Anthony DiComo of MLB.com reports.