LaRoche was dealing with a stiff back for the past couple of days, and he had to exit last night's game in the seventh inning once the discomfort increased. He was out of today's lineup as a result, and Zuckerman noted that the first baseman is also likely to miss tomorrow's game.
While he was hoping to be back in today's lineup after receiving treatment last night, it sounds like LaRoche might not be back in action until after the weekend. He told the Nationals he was unable to go this morning, but he said he doesn't need the pain to be "totally gone" for him to be able to "play and be productive." However, at this point the slugger finds it "tough to bend over and get back up."
With LaRoche out of the lineup, the Nationals used Chad Tracy at first base and in the No. 5 hole.