Washington Nationals relief pitcher Matt Purke (50) throws in a spring exhibition baseball game against the New York Mets, Wednesday, March 5, 2014, in Viera, Fla. (AP Photo/Alex Brandon)
Washington Nationals pitcher Felipe Rivero (73) throws in a spring exhibition baseball game against the Atlanta Braves, Thursday, March 6, 2014, in Kissimmee, Fla. The Braves won 3-2. (AP Photo/Alex Brandon)
Washington Nationals starting pitcher A.J. Cole (69) throws in a spring exhibition baseball game against the Atlanta Braves, Tuesday, March 4, 2014, in Kissimmee, Fla. The Braves won 8-4. (AP Photo/Alex Brandon)
Washington Nationals relief pitcher Manny Delcarmen, right, fist-bumps teammate Chris Snyder after closing out the ninth inning to defeat the New York Yankees in an exhibition spring training baseball game, Tuesday, March 11, 2014, in Viera, Fla. (AP Photo/David Goldman)
The long hair of Washington Nationals' Jayson Werth sticks out of his hat as he takes the field in the fifth inning of an exhibition spring training baseball game against the New York Yankees, Tuesday, March 11, 2014, in Viera, Fla. (AP Photo/David Goldman)
Washington Nationals' Wilson Ramos grounds into a force out to score teammate Anthony Rendon in the first inning of an exhibition spring training baseball game against the New York Yankees, Tuesday, March 11, 2014, in Viera, Fla. (AP Photo/David Goldman)
New York Yankees starting pitcher CC Sabathia throws to Washington Nationals' Jeff Kobernus in the first inning of an exhibition spring training baseball game, Tuesday, March 11, 2014, in Viera, Fla. (AP Photo/David Goldman)
Washington Nationals starting pitcher Jordan Zimmermann, right, throws to New York Yankees' Mark Teixeira in the first inning of an exhibition spring training baseball game, Tuesday, March 11, 2014, in Viera, Fla. (AP Photo/David Goldman)