Worth noting

• Neither the Nationals nor Giants took batting practice on the field Friday due to possible inclement weather. The tarp remained on the infield for most of the afternoon as a precautionary measure.

"We decided to not take a chance and get out there and hit and have [a thunderstorm] pop up and have issues with the field," Williams said.

• Williams said outfielder Nate McLouth "came out OK" after he underwent season-ending surgery on Thursday to repair a torn labrum in his right shoulder. McLouth was expected to return to the clubhouse at Nationals Park on Friday so team doctors could check him out.

"Everything went fine," Williams said. "It's all put back together and now he's in the healing process."

• Zimmerman (Grade 3 hamstring strain) threw for first time on Thursday since suffering his injury just less than a month ago. Williams said Zimmerman reported no issues with his hamstring on Friday. As a result, the third baseman should "ramp up" his throwing program in the coming days.

"He's on his way," Williams said. "We've got to be mindful of his shoulder, too, but he'll continue."

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. Daniel Popper is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.