Access the Mets beat like never before Join Post Sports+ for exciting subscriber-only features, including real-time texting with Mike Puma about the inside buzz on the Mets. Try it free The Mets added some bullpen depth through free agency. Veteran righty Zach Pop, who had been designated for assignment by the Mariners on Saturday, agreed to a major league pact with the Mets on Thursday, The Post’s Jon Heyman confirmed. The 28-year-old had pitched to a 2.79 ERA in 11 games in the minors with Seattle and had allowed eight earned runs in 5 ¹/₃ major league innings this season. 3 The Mets signed reliever Zach Pop on Thursday. Getty Images Explore More Keith Hernandez goes ‘TMI’ with plunger conversation