The Nationals could have a decided advantage in the late innings tonight. The Diamondbacks designated reliever Mike Zagurski for assignment and replaced him with Bryan Shaw. What that means is, Arizona has no left-handers in their bullpen. The Nationals, meanwhile, have Bryce Harper, Chad Tracy and Roger Bernadina at the ready. Davey Johnson will be able to dictate matchups at will. Talk about the game right here.