Nationals’ Danny Rosenbaum Cruising Through Double-A

Danny Rosenbaum just knows how to get outs. The Nationals lefthander won’t light up radar guns and blow hitters away, but he hasn’t just succeeded at every stop on his way up the minors, he’s dominated.

Rosenbaum’s Monday start for Double-A Harrisburg was just the latest example. The 24-year-old tossed seven shutout innings against New Britain, the second straight outing he’s gone seven scoreless. While he registered just five strikeouts, he didn’t give out any walks and needed only 90 pitches to get through seven frames. He allowed six hits.

Rosenbaum’s ceiling may only be that of a back-of-the-rotation starter, but his numbers are tough to argue with. He hasn’t allowed an earned run in his last 25 2/3 innings, dating back to his April 13 start, and his 0.76 ERA leads the Eastern League. While his strikeout rate is modest at 23 in 35 2/3 innings, he’s issued just two walks all season. He has a 6-1, 1.56 record in 11 Double-A starts going back to six outings he made for Harrisburg at the tail end of last season, and his career ERA since being a 22nd-round pick in 2009 is a not-too-shabby 2.20 in 388 innings.