The Washington Nationals placed infielder/outfielder Ryan Zimmerman on the 15-day disabled list with a right hamstring strain, the team announced Wednesday.
Zimmerman, 29, goes on the DL for the second time this season after missing 44 games with a right thumb fracture earlier in the year. He is hitting .282 with five home runs, 19 doubles and 36 RBIs.
In the month of July, Zimmerman collected 21 hits in 58 at-bats (.362), posted a .418 on-base percentage and a .569 slugging percentage with eight extra-base hits (six doubles, two home runs).
The Nationals also recalled infielder Zach Walters from Syracuse of the Triple-A International League.
Walters, 24, rejoins the Nationals for his second stint of the season. In 60 games at Triple-A this season, Walters is hitting .300 with a .358 on-base percentage and a .608 slugging percentage. While racking up 38 extra-base hits, Walters has hit 15 home runs with 48 RBIs.