Infielder Bill Hall brings energy to Astros

Houston Astros' Bill Hall, right, celebrates with Brett Wallace, left, and Chris Johnson after hitting a two-run home run in the fourth inning off Baltimore Orioles pitcher Brad Bergesen during a spring training baseball game in Sarasota, Fla., Tuesday, March 15, 2011.  (AP Photo)

Houston Astros' Bill Hall, right, celebrates with Brett Wallace, left, and Chris Johnson after hitting a two-run home run in the fourth inning off Baltimore Orioles pitcher Brad Bergesen during a spring training baseball game in Sarasota, Fla., Tuesday, March 15, 2011. (AP Photo)

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