The Reds (10-13) dropped the opening game of the series, 7-5, on Friday night despite a late rally. The loss was the fourth consecutive for Cincinnati and eighth in nine games.
Manager Bryan Price will turn to veteran righty Bronson Arroyo (2-2, 6.86 ERA) -- Saturday's scheduled starter -- in the series finale on Sunday afternoon, opposite former Reds right-hander Mike Leake (3-1, 1.32). The 40-year-old Arroyo lost his season debut against the Cardinals on April 8 but is coming off back-to-back wins against the Orioles and Cubs.
The rest of the Reds' rotation will be pushed back a day, with rookie lefty Amir Garrett (2-2, 5.