The Mets acquired Yennsy Díaz via the Steven Matz trade along with Sean Reid-Foley and Josh Winckowski in January. A rash of pitching injuries in the middle of the season brought both Reid-Foley and Díaz up to the majors, the former providing some spark and a few memeable moments, with the latter doing very little worth noting.
Díaz made 20 relief appearances for the Mets in 2021, most of them with the game well out of hand and only twice in a tie game, making him the backiest of the back-end relievers in the arm barn.