Washington Nationals' Danny Espinosa, top right, leaps into a pile of teammates after hitting a walk-off home run off St. Louis Cardinals reliever Fernando Salas during the 10th inning of a baseball game in Washington, Thursday, June 16, 2011. The Nationals beat the Cardinals 7-4. (AP Photo/Ann Heisenfelt)

Photo by: Ann Heisenfelt

Washington Nationals' Danny Espinosa, top right, leaps into a pile of teammates after hitting a walk-off home run off St. Louis Cardinals reliever Fernando Salas during the 10th inning of a baseball game in Washington, Thursday, June 16, 2011. The Nationals beat the Cardinals 7-4. (AP Photo/Ann Heisenfelt)