The right field returns after not starting Tuesday. He sprained his right ankle on Monday.
The right fielder said his ankle was more sore and swollen than he expected in the morning but hopes to miss only one game.
Nationals right fielder Jayson Werth says he hopes to play Tuesday, but that will depend on how his ankle feels in the morning.
Jayson Werth has a "barky" right knee, so Matt Williams wanted to give him two days off.
After a four-day break for the oldest position player on the team, the Nats expect more hot hitting from Werth in the second half.
Manager Matt Williams said he didn't take issue with Orioles Manager Buck Showalter yelling at Jayson Werth.
Manager Matt Williams wouldn't say Tuesday who would DH against the Orioles in Baltimore, but had previously offered possibilities.
After a dismal June, Jayson Werth fought his way out of a slump and emerged as the league's player for the first week of July.
Manager Matt Williams juggles wear and tear on players with their desire to play.
The Nationals have been near the bottom of the league in hitting breaking balls so far this season.