Rockies RHP Oswalt strains hamstring vs Arizona
The veteran right-hander ran to cover home plate after a wild pitch as the Diamondbacks' Eric Chavez came home from third. The throw from catcher Wilin Rosario sailed past Oswalt, who immediately indicated he was hurt.
Oswalt had difficulty walking as he was accompanied into the Colorado dugout. Right-hander Edgmer Escalona came on in relief.
Copyright 2013 by The Associated Press
This story is from ESPN.com's automated news wire. Wire index
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