A day after a big win against the Phillies, Jordan Zimmermann (9-3, 2.44 ERA) takes the mound against the Rockies in Washington. In his last start, he blew a 5-0 lead and allowed six runs one eights hits over five innings. He will face Roy Oswalt (4-3, 5.80 ERA in 2012), who makes his season debut for the Rockies. The lineups are here. As always, discuss the game here.