Mariners, Zach Pop Agree To Minor League Deal

The Mariners and right-hander Zach Pop have agreed to a minor league contract, per the transaction log at MiLB.com. The Blue Jays designated Pop for assignment at the end of spring training when they needed a 40-man roster spot. The out-of-options righty was battling elbow inflammation at the time, and since injured players can’t be placed on outright waivers, the Jays instead had to place him on release waivers. He became a free agent a couple weeks ago and will now join the fifth organization of his professional career.

Pop, 28, was a seventh-round pick by the Dodgers back in 2017. Los Angeles traded him and four others to the Orioles in the 2018 Manny Machado blockbuster, and he’s since pitched with the Marlins and Blue Jays organizations. The 6’4″ righty has logged big league time in each of the past four seasons, working to a combined 4.45 ERA with a sub-par 18.4% strikeout rate, a solid 7.9% walk rate and an excellent 55% ground-ball rate.

The 2024 season was a struggle for Pop, who pitched to a grisly 5.59 ERA over the course of 48 1/3 innings. With his sinker being hit harder than usual in 2023-24, Pop began to incorporate a cutter a couple months into the season. The pitch showed some promise, generating plenty of pop-ups and whiffs when chased off the plate, but Pop also misfired with it too often and served up three of his nine homers on the new offering — despite only throwing it at a 12.3% clip.

If the Mariners can help Pop refine that cutter or perhaps implement a new third offering, he could yet emerge as a reliable bullpen arm. He sits 96 mph with his sinker, which is plenty in terms of velocity, and his slider has long graded as a quality offering. The pitch misses bats, and opponents have slugged only .328 against it when making contact. Add in his lofty ground-ball numbers and it’s easy enough to see why the Mariners feel they may be able to coax another level out of him, even if the results over the past couple seasons have been rough.