Williams also said he wants to be careful with two of his regulars. First baseman Adam LaRoche is dealing with back problems, while Jayson Werth has a right shoulder ailment. The rest of the regulars should be back in the lineup Thursday against the Marlins.
The Nationals are aiming to end the season with the best record in the NL. If they do, they will have home-field advantage until the World Series.
"We'll give a lot of [the regulars] a day off today, rest up and get back at it tomorrow," Williams said. "It's important to play with that rhythm and timing and feel for the game. This time of year, you take days off and your body shuts down, so we don't want to give them too much [rest], because it's not good for them, it's not good for their overall game. We take a look at the starting pitching staff, give them an extra day in this regard, so that's good."
Bill Ladson is a reporter for MLB.com and writes an MLBlog, All Nats All the time. He also could be found on Twitter @WashingNats. This story was not subject to the approval of Major League Baseball or its clubs.