After his start yesterday, the news came out that Ross Detwiler is dealing with stiffness in his back, and his status for his next start is in question. In a related move, Erik Davis was recalled from Triple A Syracuse and Jeff Kobernus was optioned back down.
Detwiler spent nearly a month on the DL with an oblique strain earlier this season, but reports indicate that this injury is on the other side of his back and not related to the previous injury. The Nats are not sure right now if he will take a DL trip, but if he cannot go in his next start, Ross Ohlendorf will make the start in his place from the bullpen. Detwiler had a 2.76 ERA before going on the DL, but has struggled since and that number has now ballooned to 4.13 after just three starts.
Since Ohlendorf will not be available from the bullpen in anticipation of his potential start, it makes sense that Davis was called up. He allowed three runs in 4.1 innings in the majors this year, but the Nationals have confidence in him. He has a 3.77 ERA at Triple A this year. Kobernus was just 4-23 (.174) in his stint in the majors, but had a respectable .321 OBP thanks to four walks.