Guillorme will start at second base and bat ninth in Sunday's game against the Astros.
The lefty-hitting Guillorme had been on the bench in each of the last three contests while the Diamondbacks opposed left-handed starters, but he'll draw back into the starting nine Sunday versus Astros righty Justin Verlander. Despite his inclusion in the lineup, Guillorme's opportunities to play against righties will likely be more limited moving forward following Ketel Marte's return from the injured list.