Axelrod was obtained from the Chicago White Sox for cash on July 16. He started Aug. 17 against the Rockies and was optioned back to Triple-A Louisville the next day. Axelrod left the game with a lead but a blown save gave him a no-decision.
The Reds optioned right-hander Daniel Corcino to Louisville.
Corcino was recalled by the Reds on August 22 and made his big league debut on Tuesday, his 24th birthday. Corcino pitched a hitless inning, striking out two.