Mets outright Rafael Montero, who elects to become free agentThe right-hander missed 2018 due to Tommy John surgery11/3/2018, 1:22 PMMar 10, 2018; Tampa, FL, USA; New York Mets starting pitcher Rafael Montero (50) throws a pitch during the fifth inning against the New York Yankees at George M. Steinbrenner Field. Mandatory Credit: Reinhold Matay-USA TODAY Sports / Reinhold Matay