Jason Isringhausen is back with the Mets more than a decade after leaving New York in a trade.
New York purchased the contract of the veteran right-hander after Sunday's game and designated reliever Blaine Boyer for assignment.
Boyer allowed four runs in the 11th inning Sunday, three on a pinch-hit three-run homer by the Washington Nationals' Laynce Nix. Boyer had a 10.80 ERA in five appearances with New York.
Isringhausen, 38, began the season in extended spring training to build arm strength. He was signed to a minor league contract prior to the start of training camp but was still working his way back from 2009 elbow surgery. He pitched well enough to be in contention with Boyer for the final spot on the opening day pitching staff.
New York dealt Isringhausen to the Oakland Athletics at the July 31 deadline in 1999. He became a top closer for the A’s and St. Louis Cardinals before injuries limited his effectiveness.
The Mets also recalled right-hander Ryota Igarashi from Class AAA Buffalo on Sunday and optioned outfielder Lucas Duda to Buffalo. The move gives the Mets 13 pitchers on their staff.