Washington Nationals' Ian Desmond celebrates with teammates after hitting a game-winning, two-run home run during the ninth inning against the Arizona Diamondbacks on Wednesday, May 2, 2012, in Washington. Bryce Harper scored on the play, and the Nationals won 5-4. (AP Photo/Haraz N. Ghanbari)

Photo by: Haraz N. Ghanbari

Washington Nationals' Ian Desmond celebrates with teammates after hitting a game-winning, two-run home run during the ninth inning against the Arizona Diamondbacks on Wednesday, May 2, 2012, in Washington. Bryce Harper scored on the play, and the Nationals won 5-4. (AP Photo/Haraz N. Ghanbari)