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)
Washington Nationals outfielder Jayson Werth and catcher Kurt Suzuki celebrate after Suzuki's sacrifice fly in the eighth inning scored Werth as the Nationals beat the San Francisco Giants 4-2. (Associated Press photo)
Jayson Werth slides safely into home plate in the fifth inning on Sunday in the Washington Nationals' 6-0 win over the Philadelphia Phillies. (Associated Press photo)
Washington Nationals starting pitcher Stephen Strasburg (37) throws during the first inning of a baseball game against the Philadelphia Phillies at Nationals Park, Sunday, Aug. 11, 2013, in Washington. (AP Photo/Alex Brandon)
Washington Nationals outfielder Jayson Werth takes a curtain call after crushing a two-run homer to left field to give the Nationals a 6-4 lead over the Phillies and notch his 1,000th career hit. (Associated Press photo)
Washington Nationals right-hander Dan Haren pitched seven strong innings Friday night in the Nationals' 9-2 win over the Philadelphia Phillies. (Associated Press photo)
Atlanta Braves' Justin Upton, right, gets a hug from teammate Freddie Freeman (5) after hitting a home run against the Washington Nationals during the seventh inning of a baseball game on Wednesday, Aug. 7, 2013, in Washington. (AP Photo/Nick Wass)
Washington Nationals manager Davey Johnson looks on from the dugout during the sixth inning of a baseball game against the Atlanta Braves, Wednesday, Aug. 7, 2013, in Washington. (AP Photo/Nick Wass)
Washington Nationals' Bryce Harper waits to bat during the eighth inning of a baseball game against the Atlanta Braves, Wednesday, Aug. 7, 2013, in Washington. The Braves won 6-3. (AP Photo/Nick Wass)