Nationals Rotation

Yesterday during a pretty important outing against his former club, the Yankees, Chien Ming Wang was looking pretty good. His sinker looked strong, the slider and curve had some bit. However, in this pivotal start, Wang fielded a ball off the mound and, like he's been doing all spring in PFP, ran to first. But this time, he stumbled twice and fell very awkwardly, as well as colliding somewhat violently with Yankee catcher Russell Martin. During this tumble, Wang seemed to hyper extend his left leg, which has left him with a pull/strained hamstring. He is going to be out for around a month, effectively removing him from the fifth rotation spot battle. So, essentially by default, John Lannan will more than likely take over unless Riss Detweiler has a super turn around. If Lannan struggles during Wang's absence, I'd surely expect manager Davey Johnson to have a second battle mid-season.