Chicago Cubs
Purchased the contract of 3B Scott McClain from Triple-A Iowa. Traded LF Matt Lawton to New York Yankees for Minor League RHP Justin Berg.
Florida Marlins
Recalled RHP John Riedling from Triple-A Albuquerque and optioned C Ryan Jorgensen to Albuquerque.
Milwaukee Brewers
Jeff Housman outrighted to Triple-A Nashville. Placed RHP Ben Sheets on the 15-day disabled list with a torn latissimus dorsi muscle; recalled RHP Justin Lehr from Triple-A Nashville and outrighted LHP Jeff Housman.
New York Yankees
Acquired OF Matt Lawton from the Cubs for Minor League RHP Justin Berg; Optioned RHP Scott Proctor to Triple-A Columbus.
Oakland Athletics
Recalled LHP Ron Flores from Triple-A Sacramento and optioned INF Keith Ginter to Sacramento.
Pittsburgh Pirates
Transferred IF Jose Castillo from 15-day disabled list to 60-day disabled list. Placed LHP Zach Duke on the 15-day disabled list with a sprained left ankle and purchased the contract of LHP Paul Maholm from Triple-A Indianapolis.
San Francisco Giants
Traded OF Michael Tucker to Philadelphia for Minor League RHP Kelvin Pichardo.
Texas Rangers
Recalled RHP Erasmo Ramirez from Triple-A Oklahoma and optioned LHP Justin Thompson to Oklahoma.
Washington Nationals
Optioned LHP Matt White to Triple-A New Orleans.