The Nationals need to preserve their bullpen this afternoon, and they have the right for the job. Edwin Jackson has had some rough starts lately, allowing 16 earned runs in 13 2/3 innings over his last three outings. But he’s a workhorse who will take the ball, and even if he doesn’t have much can be counted on to suck up innings. The Nationals will try to figure out Ben Sheets, who threw six shutout innings in his 2012 debut earlier this week. Talk about the game right here.