Scott Olsen, who was placed on on the disabled list all the way back on May 22nd, is set to take the mound for the Nationals on Thursday. Via Bil Ladson:

The Nationals have their rotation set until Saturday. The Nationals have decided that left-hander Scott Olsen will come off the disabled list and pitch against the Braves on Thursday. He will replace right-hander J.D. Martin in the rotation. It will be Olsen's first start since May 21st against the Orioles.

Olsen made five rehab starts with the Single-A Hagerstown Suns, allowing nine runs over twenty innings pitched. He was one of the early bright spots in the rotation, so a return to health could only buoy the Nationals in the dog days of August.