Washington Nationals starting pitcher Dan Haren blows a bubble on the bench during the fifth inning of a baseball game against the New York Mets at Nationals Park on Wednesday, June 5, 2013, in Washington. (AP Photo/Alex Brandon)
FILE -- New York Mets' Jordany Valdespin during a baseball game against the Washington Nationals Saturday, June 29, 2013, in New York. (AP Photo/Bill Kostroun)
FILE -- New York Mets' Cesar Puello bats during a spring training baseball game against the Miami Marlins Wednesday, March 7, 2012, in Jupiter, Fla. (AP Photo/Jeff Roberson)
Washington Nationals' Wilson Ramos (40) acknowledges the crowd after his grand slam during the third inning of a baseball game against the New York Mets at Nationals Park, Sunday, July 28, 2013, in Washington. (AP Photo/Alex Brandon)
Washington Nationals shortstop Ian Desmond and center fielder Denard Span celebrate their back-to-back home runs in a win over the New York Mets. (Associated Press photo)
Washington Nationals third baseman Ryan Zimmerman celebrates his walk-off home run against the New York Mets with first base coach Tony Tarasco. (Associated Press photo)
Washington Nationals shortstop reacts after striking out in the third inning of the Nationals' 11-0 loss to the New York Mets. (Associated Press photo)
Atlanta Braves' Tim Hudson is helped by a trainer after being injured on a play at first base during the eighth inning of a baseball game against the New York Mets, Wednesday, July 24, 2013, in New York. (AP Photo/Frank Franklin II)
National League’s Matt Harvey, of the New York Mets, makes his way to the mound for the second inning during the MLB All-Star baseball game, on Tuesday, July 16, 2013, in New York. (AP Photo/Julio Cortez)
National League’s Matt Harvey, of the New York Mets, is congratulated by teammates after pitching during the MLB All-Star baseball game, on Tuesday, July 16, 2013, in New York. (AP Photo/Matt Slocum)
National League’s David Wright, of the New York Mets, hits a single during the seventh inning of the MLB All-Star baseball game, on Tuesday, July 16, 2013, in New York. (AP Photo/Frank Franklin II)