The Mets recalled Reed from Triple-A Syracuse on Wednesday.
After being claimed off waivers from the Rays on Monday, Reed was initially assigned to the minors, but he didn't have to wait long to receive his first call-up to the Mets. He'll assume the active roster spot of closer Edwin Diaz (personal), who was placed on the paternity list. Diaz is expected to rejoin the Mets within 1-to-3 days, so Reed's stint in the majors will likely be a brief one.