Diamondbacks general manager Mike Hazen said Martin (elbow) isn't expected to join the team in 2020, Nick Piecoro of the Arizona Republic reports.
Martin, who is working his way back from last July's Tommy John surgery, suffered an oblique strain earlier this month. The GM said the time needed for Martin and fellow injured pitcher Jon Duplantier (elbow) to ramp up for an appearance make pitching in 2020 unlikely.