May has been the winningest month of Cain’s career (22-17 in 54 appearances, including 53 starts). Cain is 2-2 lifetime at Great American Ball Park.
Arroyo threw a season-high 87 pitches, but lasted just four innings in Sunday’s no-decision vs. the Cards. Endurance remains an obstacle for the 40-year-old after his 2 1/2-year layoff with arm injuries, but is getting a chance to build himself up.