Mets’ Mark Vientos, Brett Baty taking reps at first base amid Pete Alonso’s prolonged free agency
Mendoza mentioned Jared Young and Joey Meneses — both of whom the Mets signed to minor-league contracts this offseason — as options at first base. Young, 29, is on the 40-man roster but boasts only 62 career MLB at-bats. Meneses, 32, is a .231 hitter in 1,114 MLB at-bats.