The Cubs countered the Cardinals acquisition of Mark DeRosa with one of their own, acquiring 2B/3B Jeff Baker from the Colorado Rockies. It's like countering a handgun with a slingshot. Seemingly running out of players to put on the disabled list, Baker is already on it with a left hand sprain suffered back in April, so he should fit right in with the Cubs. He did start a rehab assignment in mid-June, so I presume he's ready to play again and the Rockies were just out of roster space.
The player the Cubs are sending back is unknown at the moment, most likely a player to be named later.
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