Washington Nationals' Bryce Harper looks back onto the field before heading into the clubhouse after their baseball game against the Chicago Cubs at Nationals Park, Wednesday, Sept. 5, 2012, in Washington. (AP Photo/Richard Lipski)

Photo by: Richard Lipski

Washington Nationals' Bryce Harper looks back onto the field before heading into the clubhouse after their baseball game against the Chicago Cubs at Nationals Park, Wednesday, Sept. 5, 2012, in Washington. (AP Photo/Richard Lipski)