The Mets acquired Stanek from the Mariners on Friday in exchange for outfielder Rhylan Thomas, Will Sammon of The Athletic reports.
Stanek has struggled in his eight outings in July, allowing five runs on five hits and six walks and striking out eight over 5.2 innings while registering two blown saves and a loss. However, he's been a solid performer on the while this season while occupying a key late-inning role for Seattle, turning in a 4.38 ERA, 1.33 WHIP, 15 holds and seven saves across 39 innings. The 33-year-old right-hander will likely work in a setup or middle-relief role in front of closer Edwin Diaz.
Stanek recorded a hold in a loss to the Angels on Monday, allowing an earned run on two walks over one-third of an inning. He struck out one.
Stanek had another worrisome outing, yet he still came out of it with a counting stat in the form of his 15th hold of the season. The right-hander took his third loss against the Astros on Saturday after blowing a 2-1 lead; Monday, he walked the first two batters he faced before striking out Nolan Schanuel prior to being swapped out for Andres Munoz, who gave up a game-tying sacrifice fly to Taylor Ward that resulted in a run being charged to Stanek. The 32-year-old Stanek has now allowed at least one earned run in three consecutive appearances, the first time that's transpired this season.
