O'Malley got the start at shortstop Sunday and went 2-for-4 with a double in a win over the Reds.
It's his second appearance at shortstop since being called up from Triple-A, but with Chris Taylor now joining the roster to replace the injured Ketel Marte (thumb), O'Malley may not get a chance to reach the five-game threshold that would qualify him at the position in many fantasy formats. Without that extra position flexibility, his value remains fairly low.