This time, Werth is recovering from a left wrist injury. He suffered two small fractures in the wrist after being hit by a pitch from Padres right-hander Odrisamer Despaigne on May 15.
The return of Werth should be a big boost for the Nats. During his five years in Washington, Werth has a .370 on-base percentage. Last year, he had a .394 on-base percentage.
With Denard Span out with a back injury, the Nationals may consider using Werth as the leadoff hitter. Werth led off for the Nats during the second half of 2012. Yunel Escobar and Michael Taylor have been used at the top spot, but they are not prototypical leadoff hitters.
Bill Ladson is a reporter for MLB.com and writes an MLBlog, All Nats All the Time. He also can be found on Twitter @WashingNats. This story was not subject to the approval of Major League Baseball or its clubs.