Atlanta Braves called up SS Andrelton Simmons from Mississippi Braves.
Toronto Blue Jays called up Robert Coello from Las Vegas 51s.
St. Louis Cardinals placed LF Skip Schumaker on the 15-Day disabled list retroactive to May 31, 2012. right hamstring strain
St. Louis Cardinals activated RF Allen Craig from the 15-Day disabled list.
St. Louis Cardinals recalled LHP Sam Freeman from Memphis Redbirds.
Detroit Tigers recalled Casey Crosby from Toledo Mud Hens.
Chicago Cubs signed free agent LHP Alfredo Belizaire.
Seattle Mariners called up Stephen Pryor from Tacoma Rainiers.
Seattle Mariners transferred LHP George Sherrill from the 15-Day disabled list to the 60-Day disabled list.
Oakland Athletics activated CF Yoenis Cespedes from the 15-Day disabled list.
Pittsburgh Pirates activated RHP Juan Cruz from the restricted list.
Pittsburgh Pirates placed RHP Charlie Morton on the 15-Day disabled list retroactive to May 30, 2012. Right elbow inflammation.
New York Mets activated C Josh Thole from the 15-Day disabled list.
New York Mets called up Elvin Ramirez from Buffalo Bisons.
New York Mets optioned Rob Johnson to Buffalo Bisons.
New York Mets designated RHP Chris Schwinden for assignment.
Washington Nationals activated LF Michael Morse from the 15-Day disabled list.
Washington Nationals optioned Corey Brown to Syracuse Chiefs.
Miami Marlins signed free agent OF Michael Main.
Baltimore Orioles placed RF Nick Markakis on the 15-Day disabled list. Fractured right hand.
Baltimore Orioles called up Bill Hall from Norfolk Tides.
Baltimore Orioles transferred 2B Brian Roberts from the 15-Day disabled list to the 60-Day disabled list.
Chicago Cubs claim RHP Jairo Asencio off waivers from Cleveland Indians.
Chicago Cubs designated RHP Michael Bowden for assignment.
San Diego Padres recalled Yasmani Grandal from Tucson Padres.
San Diego Padres designated RHP Jeff Suppan for assignment.
San Diego Padres activated C Yasmani Grandal.
Ivan Castillo assigned to Cleveland Indians.
OF Andri Santana assigned to Cleveland Indians.
Kansas City Royals activated 2B Yuniesky Betancourt from the 15-Day disabled list.
Kansas City Royals optioned 2B Irving Falu to Omaha Storm Chasers.
Arizona Diamondbacks optioned CF A.J. Pollock to Reno Aces.
Arizona Diamondbacks activated LF Jason Kubel.
