Key 2019 Offseason dates for Mets, MLBThe Winter Meetings begin in San Diego on Dec. 910/14/2019, 7:00 PMJul 2, 2019; New York City, NY, USA; General view of sunset behind Citi Field during the fifth inning between the New York Mets and the New York Yankees. Mandatory Credit: Brad Penner-USA TODAY Sports / Brad Penner