Zach Walters is making his major league debut at second base against a right-hander.
The Nationals have a decidedly weaker schedule than the Braves over the next two weeks before their Aug. 8-10 series.
Taylor Jordan hasn't pitched since June 5 because of an elbow ailment, but the Nats are confident he'll avoid a second Tommy John surgery.
The Nationals' immediate circumstances dictate that they at least consider an upgrade in the infield with Ryan Zimmerman sidelined.
Aaron Barrett didn't plan his standoff with Brandon Barnes; it just happened.
Jayson Werth has a "barky" right knee, so Matt Williams wanted to give him two days off.
With Ryan Zimmerman on the disabled list with a "pretty substantial" hamstring injury, the Nationals may consider trading for another infielder.
Stephen Strasburg faces Jorge De La Rosa as the Nationals try for a sweep in Colorado.
The third baseman is headed to the disabled list again, this time with a hamstring injury.
Jordan Zimmermann attributed his lack of command to his long layoff, not his biceps strain.