Manager Jim Riggleman said that Zimmerman, placed on the disabled list on April 12 with a left abdominal strain, played some catch at a distance of about 60 feet Tuesday. He also did some tossing and running, all at approximately 50 percent effort.
Riggleman said that Zimmerman might try to do a little more of the same activities in the few days, basically putting in some more work as time goes on.
The skipper also said that he thinks the third baseman is going to do some kind of rehab assignment before coming back to the Nationals' lineup, but he can't pinpoint a time for that just yet.
"I would think he would [do rehab] eventually, but I have no idea when we might do that," Riggleman said.
Riggleman also said they want Zimmerman to be careful so he doesn't re-aggravate this injury, one that seems to have bothered several players in the Major Leagues already this year.
But he also said he's not worried about Zimmerman finding his stroke at the plate, since the third baseman seems to do that rather quickly.
"The one thing about Ryan is once he can do the other stuff, once he can take the ground balls and throw and run at full speed ... that he doesn't take long to find his swing," Riggleman said.