"[Escobar] was not feeling great today," Williams said. "It got worse as we got into the game. He could be OK. We'll monitor him the next day or so."
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.