The Cincinnati Reds optioned reliever Alexis Diaz to Louisville on Friday and called up fellow right-hander Luis Mey from the Triple-A club.

Diaz has struggled mightily since his return from the injured list, posting a 12.00 ERA without a decision in six appearances for Cincinnati this season.

With his team trailing by one run on Wednesday, Diaz entered the first game of a doubleheader with the St. Louis Cardinals and allowed three home runs in the ninth inning, leading to a 6-0 setback. He permitted five runs on four hits and a walk in one inning.

Diaz, 28, in 18-14 with 75 saves and a 3.21 ERA in 196 career relief appearances with Cincinnati

Credited with a pitch that traveled over 103 mph earlier this season, Mey, 23, has a 1-1 record with a 4.00 ERA with 10 strikeouts in 10 games at Louisville in 2025.

Mey is ranked as the No. 20 prospect in the Reds’ rich farm system by MLB Pipeline.

–Field Level Media