Zimmerman (hamstring) will play five innings in a simulated game Wednesday, serve as the DH Thursday and play seven innings Friday, after which the Nationals will determine whether he's ready to return Dan Kolko of MASN reports.
Storen continued his run as the Nationals' current closer Sunday, converting his fourth straight save opportunity since Rafael Soriano's demotion. Storen allowed two singles with no strikeouts, but still pulled out a save for the 3-0 Washington win.
Strasburg turned in a quality start Wednesday against the Braves but took the loss to fall to 11-11 on the year. He gave up three runs on seven hits and zero walks, while fanning eight over six innings.