Washington Nationals first baseman Adam LaRoche, left, talks with his son Drake, 11, while waiting to take batting practice during spring training baseball in Viera, Fla., Wednesday, Feb. 20, 2013.(AP Photo/Phelan M. Ebenhack)
Washington Nationals' Bryce Harper (34) and Ryan Zimmerman (11) run the bases during spring training baseball in Viera, Fla., Wednesday, Feb. 20, 2013.(AP Photo/Phelan M. Ebenhack)
Washington Nationals catcher Carlos Maldonado watches from the dugout during a spring training baseball workout in Viera, Fla., Wednesday, Feb. 20, 2013.(AP Photo/Phelan M. Ebenhack)
Washington Nationals outfielder Bryce Harper waits to take batting practice during a spring training baseball workout in Viera, Fla., Wednesday, Feb. 20, 2013.(AP Photo/Phelan M. Ebenhack)
Washington Nationals infielder Steve Lombardozzi takes batting practice during a spring training baseball workout Tuesday, Feb. 19, 2013, in Viera, Fla. (AP Photo/David J. Phillip)
Washington Nationals shortstop Ian Desmond takes batting practice during a spring training baseball workout Tuesday, Feb. 19, 2013, in Viera, Fla. (AP Photo/David J. Phillip)
Washington Nationals shortstop Ian Desmond takes batting practice during a spring training baseball workout Tuesday, Feb. 19, 2013, in Viera, Fla. (AP Photo/David J. Phillip)
Washington Nationals first baseman Adam LaRoche takes batting practice during a spring training baseball workout Tuesday, Feb. 19, 2013, in Viera, Fla. (AP Photo/David J. Phillip)
Washington Nationals outfielder Bryce Harper takes batting practice during a spring training baseball workout Tuesday, Feb. 19, 2013, in Viera, Fla. (AP Photo/David J. Phillip)
Washington Nationals outfielder Bryce Harper takes batting practice during a spring training baseball workout Tuesday, Feb. 19, 2013, in Viera, Fla. (AP Photo/David J. Phillip)
Washington Nationals pitcher Rafael Soriano waits with teammates for the start of a spring training baseball workout Tuesday, Feb. 19, 2013, in Viera, Fla. (AP Photo/David J. Phillip)
Washington Nationals third baseman Ryan Zimmerman, right, talks with outfielder Bryce Harper during a spring training baseball workout Tuesday, Feb. 19, 2013, in Viera, Fla. (AP Photo/David J. Phillip)
Washington Nationals outfielders Jayson Werth, right, and Denard Span, left, talk during a spring training baseball workout Tuesday, Feb. 19, 2013, in Viera, Fla. (AP Photo/David J. Phillip)
Washington Nationals pitcher Rafael Soriano throws during a spring training baseball workout Tuesday, Feb. 19, 2013, in Viera, Fla. (AP Photo/David J. Phillip)
Washington Nationals shortstop Ian Desmond, left, tags Roger Bernadina, right during a spring training baseball workout Tuesday, Feb. 19, 2013, in Viera, Fla. (AP Photo/David J. Phillip)
Washington Nationals outfielder Denard Span runs the bases during a spring training baseball workout Tuesday, Feb. 19, 2013, in Viera, Fla. (AP Photo/David J. Phillip)
Washington Nationals infielder Steve Lombardozzi, left, tosses the ball during a spring training baseball workout Tuesday, Feb. 19, 2013, in Viera, Fla. (AP Photo/David J. Phillip)