Jordan Zimmermann went down one level of the Nationals' farm system to make his fifth minor-league rehab start today. His performance went down several notches.
Pitching for low-Class A Hagerstown in the first game of a twi-night doubleheader against West Virginia, Zimmermann was tagged for seven runs and seven hits in five innings, suffering his first loss of the season.
Zimmermann, who hadn't allowed an earned run or issued a walk in four previous rehab starts with high-Class A Potomac, gave up six earned runs today. He also walked a batter, struck out three and served up two home runs.
The right-hander is expected to come off the disabled list and join the Nats' rotation sometime in mid-August.