With apologies to Stephen Strasburg and 20-game winner Gio Gonzalez, the Washington Nationals appear to have a new ace of their pitching staff. Jordan Zimmermann has been downright dominant. The right-hander turned in another dazzling performance with two-hit ball over eight innings, Ian Desmond hit a two-run homer in the fourth and the Nationals finally beat the Atlanta Braves, 2-0 on Wednesday night.