Left-hander Ross Detwiler will be called up in time for tonight's game against the Cubs, making a spot start for the Nationals after their Saturday doubleheader against the Pirates bumped their pitchers up a day.
Collin Balester was packing up his locker at Nationals Park on Monday afternoon, and the team will likely announce he's headed back to Triple-A Syracuse when it officially announces the move later today.
Detwiler will only be up for one start, but he could stand to make a good impression. He was the last starting pitcher cut from major league camp this spring after allowing five runs in 17 innings, but has started with a 4.53 ERA in 16 games at Syracuse, walking 32 batters in 87 1/3 innings. He made an impression this spring with an improved curveball and more streamlined mechanics, but hasn't carried it over as pitchers like Tom Milone have outperformed him.
The 25-year-old Detwiler was pulled after two innings in his last start June 30, so he should be fresh.