BY ADAM RONIS
Nationals outfielder Elijah Dukes received the opportunity to play when Wily Mo Pena got injured during the spring. Now, Dukes is on the disabled list, too. Dukes was placed on the 15-day DL after leaving tonight's game against the Braves with a tight right hamstring. Dukes has been bothered by a sore hamstring the past few weeks that forced him to miss some games. The Nationals recalled pitcher Chris Schroeder. Willie Harris is expected to play leftfield.