Bernie Miklasz of the St. Louis Dispatch reports the Cardinals have traded Chris Duncan for Julio Lugo. The Boston Herald is also apparently confirming the deal.

http://news.bostonherald.com/blogs/sports/red_sox/?p=2615

Chris Duncan, an outfielder for the St. Louis Cardinals, has had a disappointing 2009, batting .227 with 5 home runs, 32 RBIs, and 25 runs. Duncan had just recently been demoted to AAA Memphis. Duncan was currently on an 1-31 slump.

By dealing for LaRoche earlier in the day, the Sox have added two decent left-handed bats with power, although both are having very disappointing seasons. Its reported that the Sox had to pay the rest of Lugo's contract for the trade.