
Nationals catcher Wilson Ramos tries to stretch after feeling his left hamstring tighten up again on Wednesday night. (Associated Press photo)

Nationals catcher Wilson Ramos tries to stretch after feeling his left hamstring tighten up again on Wednesday night. (Associated Press photo)

Washington Nationals relief pitcher Rafael Soriano (29) celebrates with Washington Nationals catcher Wilson Ramos (40) as the Washington Nationals beat the Miami Marlins 2-0 on opening day at Nationals Park, Washington, D.C., Monday, April 1, 2013. (Andrew Harnik/The Washington Times)

Washington Nationals catcher Wilson Ramos throws back the ball during the fifth inning of an exhibition spring training baseball game against the Detroit Tigers, Sunday, March 10, 2013 in Lakeland, Fla. (AP Photo/Carlos Osorio)

Wilson Ramos follows through on the first of his two home runs in the Washington Nationals' 7-6 victory over the Cincinnati Reds in 11 innings Saturday. Ramos and Ian Desmond hit home runs in the 11th inning to win the game for the Nationals after the Reds tied it at 5-5 in the ninth. (Associated Press photo)

Washington Nationals' Wilson Ramos (40) rounds the bases after hitting a home run against the Cincinnati Reds in a baseball game, Saturday, April 6, 2013, in Cincinnati. (AP Photo/Al Behrman)

Washington Nationals' Wilson Ramos (40) rounds the bases after hitting a home run against the Cincinnati Reds in a baseball game, Saturday, April 6, 2013, in Cincinnati. (AP Photo/Al Behrman)

Wilson Ramos follows through on the first of his two home runs in the Washington Nationals' 7-6 victory over the Cincinnati Reds in 11 innings Saturday. Ramos and Ian Desmond hit home runs in the 11th inning to win the game for the Nationals after the Reds tied it at 5-5 in the ninth. (Associated Press photo)

Wilson Ramos follows through on the first of his two home runs in the Washington Nationals' 7-6 victory over the Cincinnati Reds in 11 innings Saturday. Ramos and Ian Desmond hit home runs in the 11th inning to win the game for the Nationals after the Reds tied it at 5-5 in the ninth. (Associated Press photo)