"We decided to put our heads together and let (Díaz) try to figure out − get right in Triple-A," Francona said.

Díaz, an All-Star in 2023, allowed three consecutive homers in the first game of the Reds' doubleheader loss to the Cardinals on Wednesday.

A day after allowing five runs in the ninth inning of Game 1 of the doubleheader against the Cardinals, right-hander Alexis Díaz was optioned to Triple-A Louisville by the Reds. In his place, the club called up right-hander Luis Mey from Louisville.