Montero has officially been recalled to start Monday's game against the Marlins.
Montero will serve as the fill-in for Jacob deGrom, whose turn in the rotation is being skipped Monday as he attempts to work out some mechanical issues. The right-handed Montero struggled, initially, at Triple-A this season, but has since turned things around at Double-A, where he holds a 1.70 ERA across eight starts (47.2 innings).