Atlanta Braves
Placed C Johnny Estrada on the 15-day disabled list, retroactive to Aug. 6, with lower back spasms; Recalled C Brayan Pena from Triple-A Richmond.
Baltimore Orioles
Designated OF Midre Cummings for assignment.
Chicago Cubs
Recalled LHP John Koronka from Triple-A Iowa and optioned LHP Rich Hill to Iowa.
Los Angeles Angels
Optioned RHP Chris Bootcheck to Triple-A Salt Lake.
Los Angeles Dodgers
:Activated OF Jayson Werth from 15-day disabled list; Placed LHP Wilson Alvarez on 15-day disabled list with a left shoulder impingement.
New York Mets
Placed OF Mike Cameron on the 15-day disabled list with a broken nose, multiple fractures of both cheekbones and a slight concussion; Recalled OF Victor Diaz from Triple-A Norfolk.
Pittsburgh Pirates
Placed OF Jody Gerut on the 15-day disabled list with irritation of the patella tendon in the right knee and recalled OF Nate McLouth from Triple-A Indianapolis.