"You can tell by the dive, it wasn't real pleasant to watch because [Espinosa] kind of fell over," Williams said. "I anticipate that he will be OK. He is getting some fluids. We'll see how he is tomorrow."
Espinosa has been a pleasant surprise this year, hitting .255 with 10 home runs and 28 RBIs.
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.