Armstrong's first career grand slam in the seventh inning of Friday's 13-6 win over the Reds made him the first Cubs player since runs batted in became an official stat in 1920 to have two games with at least six RBIs in a calendar month.

Hunter Greene was scheduled to throw a maximum of 80 pitches in what was his return appearance from the 15-day injured list, but he was still on pace to get through five innings until Chicago's Nico Hoerner worked a 12-pitch at-bat in the fourth inning.