May 16
DeRosa (oblique) will start throwing off flat ground Wednesday, Bill Ladson of mlb.com reports.
Recommendation: He's hoping to start hitting again by the end of the week. "I'm starting to get to the point of being pain free. Now we just have to ramp it up and get a bat in my hand. I feel good," DeRosa said. There's still no timetable for his return, but he looks to be at least a week or two away from rejoining the Nats lineup.