Fedde was placed on the DL with High-A Potomac on Thursday with mild oblique soreness, the Washington Post's Chelsea Janes reports.

EDGE Analysis

Fedde is the Nationals' top pitching prospect in the lower levels of the minors, and had a 3.63 FIP and 46:10 K:BB in 45 innings prior to the injury. He only tossed 64 innings last season as he was returning from Tommy John surgery, so he could still hit his innings cap this season even if he's sidelined for a month with this injury, which seems likely.