Werth played in a doubleheader for Class A Potomac on Saturday, homering in the first game while playing left field before serving as the designated hitter in the second and going 0 for 2 with a walk and a strikeout.
[daily_cut.mlb]Werth is expected to take Sunday off before evaluating how he feels. The Nationals begin a three-game road series against the Boston Red Sox on Monday.
"That would be a standard thing, if he played and had to get going in two separate games, it'd be standard for him to get the day [off] anyway and get a work day and be ready to play the following day," manager Matt Williams said, reports CSNWashington.com. "We'll see how he comes out of it, whether that's with us or another rehab game."
Werth has played in three minor-league rehab games after limited work in spring training.
The 35-year-old outfielder appeared in 147 games last season, hitting .292 with 16 home runs, 82 RBI and an .849 OPS.
The Nationals began this season 1-3 entering Saturday night's road game against the Philadelphia Phillies.
- Mike Fiammetta