Chris Johnson, Brett Wallace optioned
The pair began the season as starters, but have not performed as the team had hoped. Johnson is hitting .245 with six home runs and 36 RBIs in 92 games this season and Wallace is batting .268 with four homers and 26 RBIs in 101 games.
Houston recalled outfielder Brian Bogusevic from Oklahoma City and infielder Jimmy Paredes from Double-A Corpus Christi to take their spots on the roster.
Copyright 2011 by The Associated Press
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