Arizona Diamondbacks
Placed LHP Shawn Estes on the 15-day disabled list, retroactive to July 6, with a stress reaction of his left ankle and recalled RHP Brandon Medders from Triple-A Tucson.
Baltimore Orioles
Activated OF B.J. Surhoff from the 15-day disabled list and optioned OF David Newhan to Triple-A Ottawa.
Boston Red Sox
Acquired INF Alex Cora from the Cleveland Indians in exchange for INF Ramon Vazquez; Activated OF Adam Stern from the 60-day disabled list; Optioned LHP Lenny DiNardo to Triple-A Pawtucket and designated OF Jay Payton for assignment.
Chicago Cubs
Optioned OF Jason Dubois and OF Corey Patterson to Triple-A Iowa and purchased the contracts of OF Adam Greenberg and OF Matt Murton from Double-A West Tennessee.
Cleveland Indians
Acquired INF Ramon Vazquez from the Red Sox for INF Alex Cora and recalled LHP Brian Tallet from Triple-A Buffalo.
Colorado Rockies
Signed RHP Mike DeJean; optioned RHP David Cortes to Triple-A Colorado Springs.
Detroit Tigers
Outrighted IF Jason Smith to Triple-A Toledo.
Kansas City Royals
Reinstated LHP Jeremy Affeldt from the 15-day disabled list and optioned RHP Jonah Bayliss to Double-A Wichita.
New York Yankees
Purchased the contract of OF Melky Cabrera from Triple-A Columbus; Placed RHP Carl Pavano on the 15-day disabled list with right shoulder tendinitis, retroactive to June 28; Transferred INF Rey Sanchez from the 15-day to the 60-day disabled list.
San Diego Padres
Activated C Ramon Hernandez from the 15-day disabled list and optioned C Miguel Ojeda to Triple-A Portland.
Texas Rangers
Recalled INF Marshall McDougall from Triple-A Oklahoma.