Washington Nationals starting pitcher Jordan Zimmermann throws in the first inning of a spring exhibition baseball game against the Atlanta Braves, Saturday, March 1, 2014, in Viera, Fla. (AP Photo/Alex Brandon)
Washington Nationals pitcher Jefry Rodriguez throws during a spring training baseball workout, Saturday, March 1, 2014, in Viera, Fla. (AP Photo/Alex Brandon)
Washington Nationals pitcher Jefry Rodriguez gets a drink during a spring training baseball workout, Saturday, March 1, 2014, in Viera, Fla. (AP Photo/Alex Brandon)
**FILE** Washington Nationals starting pitcher Taylor Jordan (38) throws during a baseball game against the Philadelphia Phillies at Nationals Park Saturday, Aug. 10, 2013, in Washington. (AP Photo/Alex Brandon)
Washington Nationals baseball manager Frank Robinson, right, signs an autograph for Alex Fuoco, 12, from Palm Bay, Fla. during spring training, Saturday, Feb. 26, 2005, in Viera, Fla.(AP Photo/Lawrence Jackson)
Washington Nationals starting pitcher Stephen Strasburg signs autographs after a spring training baseball workout, Thursday, Feb. 20, 2014, in VIera, Fla. (AP Photo/Alex Brandon)
Washington Nationals shortstop Ian Desmond, left, makes a relay throw over second baseman Anthony Rendon during a spring training baseball workout, Sunday, Feb. 23, 2014, in Kissimmiee, Fla. (AP Photo/Alex Brandon)
Washington Nationals starting pitcher Ross Detwiler, left, talks with catcher Jhonatan Solano after Detwiler pitched during a spring training baseball workout, Sunday, Feb. 23, 2014, in Kissimmiee, Fla. (AP Photo/Alex Brandon)
Washington Nationals left fielder Bryce Harper practices bunting during a spring training baseball workout, Sunday, Feb. 23, 2014, in Kissimmiee, Fla. (AP Photo/Alex Brandon)