The Nationals are promoting prospect left-hander Seth Romero to Triple-A Rochester.
Romero, who threw 2 2/3 innings in the majors last season, hurt his ribs during spring training and didn’t make his season debut until July. He’s been used as a starter since then, posting a 4.83 ERA over 10 starts between three different levels in the minors. The 25-year-old southpaw has struck out 50 batters in 31 2/3 innings while walking 13, so he’s starting to get back on track after some injuries and off-field issues.