The Mets signed Devenski to a minor-league contract with an invitation to spring training Monday, Anthony DiComo of MLB.com reports.
The Mariners outrighted Devenski off the 40-man roster and assigned him to Triple-A Tacoma on Tuesday.
Devenski signed a major-league contract with the Mariners on Tuesday.
The Rays released Devenski on Sunday.
The Rays designated Devenski for assignment Tuesday, Tricia Whitaker of Bally Sports Sun reports.
Devenski (2-1) didn't allow a baserunner and struck out two in a scoreless ninth inning to earn the win Tuesday against the Cubs.
The Rays reinstated Devenski (knee) from the 15-day injured list Saturday.
Devenski (knee) threw three innings and allowed one earned run on two hits while striking out three during a rehab appearance with Triple-A Durham on Wednesday.
Devenski (knee) is scheduled to throw three innings with Triple-A Durham in a rehab appearance Wednesday, per MLB.com.
Devenski (knee) threw two innings and allowed three earned runs on four hits while striking out five in a rehab appearance with Triple-A Durham on Sunday.