Keller (0-1) took the loss after allowing six runs on seven hits and two walks while striking out seven over four innings in the second game of Monday's doubleheader against the Reds.
Keller got off to a rough start, giving up six runs (including a grand slam) in his first inning of work. Following the nightmare inning, the right-hander managed to settle down and only surrendered one hit the rest of the way. Keller was called up prior to the game for Montana DuRapau, though it remains to be seen if Keller will remain in the big leagues following a rough debut. Since Nick Kingham started the first game of the doubleheader, he's also a candidate to get the nod Saturday against the Brewers, when Keller's next turn would come up.