Washington Nationals' Bryce Harper, center, celebrates with teammates after his scored the winning run during the 12th inning of a baseball game against the New York Mets, Tuesday, June 5, 2012, in Washington. The Nationals won 7-6. (AP Photo/Alex Brandon)

Washington Nationals' Bryce Harper, center, celebrates with teammates after his scored the winning run during the 12th inning of a baseball game against the New York Mets, Tuesday, June 5, 2012, in Washington. The Nationals won 7-6. (AP Photo/Alex Brandon)