Washington Nationals' Ryan Zimmerman (11) is congratulated by Danny Espinosa after Zimmerman scored on a base hit by Michael Morse against the Miami Marlins in the sixth inning of a baseball game in Miami, Sunday, July 15, 2012. The Nationals won 4-0. (AP Photo/Alan Diaz)

Photo by: Alan Diaz

Washington Nationals' Ryan Zimmerman (11) is congratulated by Danny Espinosa after Zimmerman scored on a base hit by Michael Morse against the Miami Marlins in the sixth inning of a baseball game in Miami, Sunday, July 15, 2012. The Nationals won 4-0. (AP Photo/Alan Diaz)