Jun 11, 2014; San Francisco, CA, USA; Washington Nationals starting pitcher Tanner Roark (57) throws a pitch against the San Francisco Giants during the first inning at AT&T Park. Mandatory Credit: Ed Szczepanski-USA TODAY Sports

After a rough offensive weekend in St. Louis, the Nationals will face a challenge tonight against the Astros. Dallas Keuchel may not yet be a marquee name, but the Astros right-hander has pitched at all-star level this season, going 8-3 with a 2.38 ERA. The Nationals will send Tanner Roark to the mound to quiet a Houston offense that, with the addition of Jonathan Singleton, is much better now than it was when the teams faced one another in late April.

Talk about the game right here.