The Chicago White Sox have acquired right-hander Miguel Castro in a trade with the Houston Astros. Castro and infielder Vinny Capra were added to the roster before the opener of a three-game series against the Chicago Cubs.

The Major League Baseball trade deadline is still a couple months away, but a few teams are starting to upgrade around the edges.

The Houston Astros traded minor-league reliever Miguel Castro to the Chicago White Sox in exchange for cash considerations, general manager Dana Brown said Thursday. Castro, the veteran 30-year-old right-hander,