The Mets reinstated Gerber (finger) from the 15-day injured list and optioned him to Triple-A Syracuse on Sunday.
The right-hander has been sidelined nearly a month due to a finger blister, but he's now been fully cleared after a four-game rehab assignment. Gerber struck out five over two scoreless frames in his lone appearance for the Mets, but he's struggled to a 6.75 ERA across seven outings at Syracuse.