Last night's game against the Atlanta Braves was cancelled when a gunman killed 12 people in the Navy Yard. The Nationals will play a double-header today at Nationals Stadium in Washington, D.C.
The Braves can clinch the National League East title with just two wins. For Tuesday's double-header, Haren will start Game 1 against Braves lefty Mike Minor, while rookie Tanner Roark will face veteran Freddy Garcia in the night game.
2014: The Year in Music [PHOTOS]