MLB Transactions in September 2011
Sep 30, 2011
- The Chicago White Sox agreed to terms with RHP Sergio Santos on a three-year contract.
- The Oakland Athletics received OF Eliezer Mesa from Colorado to complete the trade that sent Mark Ellis to the Rockies.
Sep 29, 2011
- The Chicago White Sox acquired RHP Jhan Marinez and INF Ozzie Martinez from Florida.
Sep 27, 2011
- The Kansas City Royals traded 1B Kila Ka-aihue to Oakland for RHP Ethan Hollingsworth.
- The Minnesota Twins claimed RHP Esmerling Vasquez off waivers from Arizona.
Sep 23, 2011
- The Arizona Diamondbacks acquired LHP Mike Zagurski from Philadelphia for a player to be named.
Sep 22, 2011
- The St. Louis Cardinals agreed to terms with OF-1B Lance Berkman on a one-year contract for the 2012 season.
Sep 20, 2011
- The Pittsburgh Pirates acquired RHP Eliecer Cardenas from the Atlanta Braves as the player to be named in the Matt Diaz trade.
Sep 18, 2011
- The Cleveland Indians sent $20,000 to Minnesota to complete an earlier trade.
- The New York Mets agreed to terms with LHP Tim Byrdak on a one-year contract extension.
Sep 14, 2011
- The Pittsburgh Pirates claimed C Matt Pagnozzi off waivers from Colorado.
Sep 13, 2011
- The St. Louis Cardinals agreed to terms with RHP Chris Carpenter on a two-year contract extension through the 2013 season.
Sep 8, 2011
- The San Francisco Giants released OF Aaron Rowand and INF Miguel Tejada.
Sep 2, 2011
- The Atlanta Braves released shortstop Julio Lugo.
- The San Diego Padres claimed RHP Drew Carpenter off outright waivers from the Philadelphia.
Sep 1, 2011
- The San Diego Padres claimed RHP Jeff Fulchino off waivers from Houston.