The Washington Nationals left San Francisco feeling pretty good about themselves despite enduring their worst loss in more than a month.Washington Nationals' Denard Span reacts after striking out against San Francisco Giants pitcher Tim Hudson during the third inning of a baseball game in San Francisco, Thursday, June 12, 2014. The Giants won 7-1.Washington Nationals pitcher Blake Treinen (64) throws against the San Francisco Giants during the first inning of a baseball game in San Francisco, Thursday, June 12, 2014.