The Reds announced that David Holmberg will be sent back down to Louisville after his disastrous start last night. To take his spot, the team has purchased the contract of RHP Daniel Corcino from Pensacola. Corcino has taken an unconventional route to the majors from AAA, by way of AA. He'll be making his major league debut (at some point).
Corcino, once regarded as the second coming of Johnny Cueto, fell on hard times in his first season at AAA in 2013 (129 IP, 5.86 ERA, 5.1 BB/P, 6.3 SO/9). He's performed better at Pensacola this year and has been missing more bats in recent starts. He's at a critical moment in his career in terms of whether he remains a starter. He'll turn 24 in a few days and a class of Reds' prospects will be graduating to the Louisville rotation over the next year or so.
Unless the team has something weird planned, Corcino will likely pitch out of the bullpen. The Reds may be wanting to get a closer look at him in that role. I'd guess they'll keep 8 men there until they need Dylan Axelrod to pitch again in Homer's old spot - which could be as late as the Pirates' series (Aug 29-31).