The St. Louis Cardinals are adding their second starting pitcher in as many days. Jon Heyman reports that they have acquired John Lackey from the Boston Red Sox.

https://twitter.com/JonHeymanCBS/status/494883728858947584

The Cardinals added Justin Masterson yesterday. The difference with this move is that Lackey is under control through the 2015 season, while Masterson is only with them in 2014. Nothing yet on who they gave up.

UPDATE 12:38 PM: Heyman says that the Red Sox are getting a major league ready outfielder and a pitcher back.

https://twitter.com/JonHeymanCBS/status/494884756165648386

UPDATE 12:47 PM: Peter Gammons says the Red Sox will get Allen Craig and Joe Kelly.

https://twitter.com/pgammo/status/494886818702438400...

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