AP Photo 6 months ago

Washington Nationals' Adam Dunn sits on the bench after the Nationals were swept by the Philadelphia Phillies 8-6 on Sunday, May 17, 2009, in Washington.

AP Photo 6 months ago

Washington Nationals Adam Dunn throws his bat to the ground after he struck out against the Philadelphia Phillies during the 11th inning of a baseball game, Friday, May 15, 2009, in Washington. The Phillies won 10-6 in 12 innings.

AP Photo 6 months ago

Washington Nationals Adam Dunn high fives teammate Elijah Dukes (34) after Dunn hit a solo home run against the Arizona Diamondbacks during the third inning of an MLB baseball game Friday, May 8, 2009 in Phoenix.

AP Photo 7 months ago

Washington Nationals Adam Dunn (44) celebrates with teammates Ryan Zimmerman (11) and Cristian Guzman (15) after his three run home run in the seventh inning of a baseball game with the St. Louis Cardinals at Nationals Park in Washington Saturday, May 2, 2009. Nationals won 6-1.

AP Photo 7 months ago

Washington Nationals Adam Dunn watches his three run home run against the St. Louis Cardinals in the seventh inning of a baseball game at Nationals Park in Washington Saturday, May 2, 2009. Nationals won 6-1.

AP Photo 7 months ago

Washington Nationals Adam Dunn hits his three run home run against the St. Louis Cardinals in the seventh inning of a baseball game at Nationals Park in Washington Saturday, May 2, 2009. Nationals won 6-1.

AP Photo 7 months ago

Washington Nationals' Adam Dunn (44) is congratulated by teammates Cristian Guzman (15) and Ryan Zimmerman (11) after hitting a three-run home run against the Florida Marlins' in the sixth inning of a baseball game in Miami, Monday, April 6, 2009.

Team USA's Adam Dunn watches after connecting for a solo home run during the sixth inning against the Netherlands in second round play of the World Baseball Classic in Miami March 15, 2009.

AP Photo 8 months ago

United States' Adam Dunn follows through on his solo home run against the Netherlands in the sixth inning of a World Baseball Classic game in Miami, Sunday, March 15, 2009.

AP Photo 8 months ago

United States right fielder Adam Dunn catches a foul fly ball by Netherlands' Vince Rooi in the second inning of a World Classic Baseball game in Miami, Sunday, March 15, 2009.

AP Photo 8 months ago

The United States' Adam Dunn (17) is congratulated by Kevin Youkilis (21) after scoring on a double by Brian McCann, not shown, against Puerto Rico during the second round of the World Baseball Classic game in Miami, Saturday, March 14, 2009.

AP Photo 8 months ago

United States' Adam Dunn reacts after striking out in the sixth inning against Venezuela in the World Baseball Classic group C final in Toronto on Wednesday, March 11, 2009. USA lost to Venezuela 5-3.

Team USA batter Adam Dunn (17) celebrates his two-run home run with Kevin Youkilis (L) in front of Team Canada catcher Russell Martin during the eighth inning of their World Baseball Classic (WBC) game in Toronto, March 7, 2009.

AP Photo 8 months ago

United States' Adam Dunn (17) celebrates as he crosses home plate after hitting a two-run home run as Canada catcher Russell Martin looks away during sixth inning action at the World Baseball Classic in Toronto on Saturday March 7, 2009. The U.S. won 6-5.

AP Photo 9 months ago

Brady Dunn, 2, son of Washington National baseball player Adam Dunn, right, tries on a jersey during a news conference at National Park in Washington, Thursday, Feb. 12, 2009, where Dunn's signing was announced. At podium is Nationals director of media relations John Dever.

AP Photo 1 month ago

Washington Nationals' Alberto Gonzalez enters the dugout after scoring on an RBI by Adam Dunn during the seventh inning against the Atlanta Braves in their baseball game Sunday Oct. 4, 2009, in Atlanta. Washington won 2-1 in the 15th inning with a RBI by Gonzalez.

AP Photo 1 month ago

Washington Nationals' Adam Dunn singles to right field to drive in Alberto Gonzalez against the Atlanta Braves during the seventh inning of their baseball game Sunday Oct. 4, 2009, in Atlanta.

AP Photo 1 month ago

Washington Nationals first baseman Adam Dunn, right, tags out Atlanta Braves Yunel Escobar on his way to first on a sacrifice bunt during the ninth inning of their baseball game Saturday Oct. 3, 2009, in Atlanta.

AP Photo 2 months ago

New York Mets' Luis Castillo is forced out at first by Washington Nationals' first baseman Adam Dunn during the seventh inning of a baseball game against the Washington Nationals, Tuesday, Sept. 29, 2009, in Washington. The Nationals won 4-3.

AP Photo 2 months ago

Washington Nationals interim manager Jim Riggleman, front left, talks to pitcher Garrett Mock, center, as Josh Bard, back left, Pete Orr, Ian Desmond and Adam Dunn (44) look on during the fourth inning of a baseball game against the Atlanta Braves on Saturday, Sept. 26, 2009, in Washing...

AP Photo 2 months ago

1Washington Nationals' catcher Josh Bard, right, and teammate Adam Dunn celebrate the their 6-5 win over the New York Mets in their baseball game at Citi Field in New York, Friday, Sept. 18, 2009. Bard hit a home run, going one-for-three with three runs batted in.

AP Photo 2 months ago

Washington Nationals' Ryan Zimmerman, left, is congratulated by teammate Adam Dunn, right, after driving-in Cristian Guzman, center, with a two-run home run in the first inning of a baseball game against the New York Mets at Citi Field in New York, Friday, Sept. 18, 2009.

AP Photo 2 months ago

Washington Nationals' Adam Dunn avoids a close pitch by Florida Marlins pitcher Andrew Miller during the fourth inning of a baseball game Sunday, Sept. 13, 2009 in Miami.

AP Photo 2 months ago

Washington Nationals' Adam Dunn hits a two-run home run off Florida Marlins' pitcher Josh Johnson during the first inning of a baseball game in Miami, Friday, Sept 11, 2009.

AP Photo 2 months ago

Washington Nationals' Cristian Guzman (15) slides home to score on a single by Adam Dunn as Philadelphia Phillies catcher Paul Bako, left, waits for the ball during the frist inning of a baseball game, Wednesday, Sept. 9, 2009, in Washington.