Aug 31, 2009

• The Chicago White Sox acquired pitcher Brandon Hynick via trade from the Colorado Rockies.
• The Colorado Rockies acquired pitcher Jose Contreras via trade from the Chicago White Sox
• The Los Angeles Dodgers acquired pitcher Jon Garland via trade with the Arizona Diamondbacks; acquired Jim Thome via trade with the Chicago White Sox.
• The San Francisco Giants signed pitcher Brad Penny to a minor-league contract.

Aug 30, 2009

• The Los Angeles Dodgers acquired infielder Ronnie Belliard from the Nationals for a minor league pitcher.

Aug 29, 2009

• The Minnesota Twins signed reliever Ron Mahay.

Aug 28, 2009

• The Los Angeles Angels of Anaheim acquired Scott Kazmir from the Rays for two minor leaguers.

Aug 27, 2009

• The Boston Red Sox released Brad Penny.

Aug 25, 2009

• The Washington Nationals signed Pitcher Livan Hernandez.
• The New York Mets traded pitcher Billy Wagner to the Boston Red Sox for two players to be named.

Aug 24, 2009

• The Colorado Rockies agreed to a minor league contract with first baseman Jason Giambi.

Aug 22, 2009

• The Colorado Rockies purchased the contract of pitcher Matt Herges.
• The Houston Astros signed pitcher Armando Benitez to a minor league contract.
• The Minnesota Twins purchased the contract of pitcher Armando Gabino from Rochester.
• The San Diego Padres agreed to terms with infielder David Eckstein on a one-year extension.

Aug 20, 2009

• The Los Angeles Dodgers signed pitcher Vicente Padilla.

Aug 19, 2009

• The Milwaukee Brewers acquired pitcher Ruben Flores from the the Seattle Mariners for third baseman Bill Hall.
• The St. Louis Cardinals agreed to terms with pitcher John Smoltz.

Aug 18, 2009

• The Baltimore Orioles purchased the contract of first baseman Michael Aubrey from Norfolk of the International League (AAA); agreed to terms with shortstop Mychal Givens.
• The Boston Red Sox signed shortstops David Renfroe and Jason Thompson, pitchers Madison Younginer, Kendal Volz, Reynolds Parthemore, Alex Hassan, Eric Curtis and Shaughn Webb, outfielder Brandon Jacobs and third baseman Miles Head.
• The Chicago White Sox purchased the contract of pitcher Freddy Garcia from Charlotte of the Pacific Coast League (AAA).
• The Cincinnati Reds signed pitchers Mike Leake and Brad Boxberger.
• The Cleveland Indians signed pitcher Alex White.
• The Detroit Tigers agreed to terms with pitchers Jacob Turner and Andy Oliver.
• The Florida Marlins purchased the contract of first baseman Gaby Sanchez from New Orleans; signed pitchers Chad James and Bryan Berglund.
• The Minnesota Twins purchased the contract of pitcher Philip Humber from Rochester of the International League (AAA).
• The Oakland Athletics agreed to terms with shortstop Grant Green.
• The San Diego Padres agreed to terms with pitcher Jorge Reyes.
• The San Francisco Giants signed pitcher Zack Wheeler and catcher Thomas Joseph.
• The Seattle Mariners signed pitcher Tyler Blandford; agreed to terms with first baseman/outfielder Dustin Ackley.
• The Toronto Blue Jays signed outfielders Jacob Marisnick and Kristopher Hobson and pitchers Andrew Hutchison and Daniel Webb.

Aug 17, 2009

• The Atlanta Hawks purchased the contract of outfielder Reid Gorecki from Gwinnett of the International League (AAA).
• The Baltimore Orioles traded infielder Aubrey Huff to the Detroit Tigers for minor league pitcher Brett Jacobson.
• The Boston Red Sox released pitcher John Smoltz.
• The New York Yankees released pitcher Russ Ortiz.
• The Oakland Athletics purchased the contract of pitcher Brett Tomko; agreed to terms with catcher Max Stassi.

Aug 14, 2009

• The Boston Red Sox acquired shortstop Alex Gonzalez and cash from the Cincinnati Reds for minor league infielder Kris Negron.

Aug 13, 2009

• The Cleveland Indians traded shortstop Andy Cannizaro to the Chicago White Sox for cash considerations.

Aug 12, 2009

• The Cleveland Indians claimed pitcher RJ Swindle on waivers from the Tampa Bay Rays and optioned him to Columbus of the International (AAA).
• The Milwaukee Brewers purchased the contract of outfielder Jason Bourgeois from Nashville.
• The Minnesota Twins purchased the contract of pitcher Jeff Manship from Rochester of the International League (AAA).

Aug 11, 2009

• The Cleveland Indians signed pitcher Matt Packer and was assigned to Mahoning Valley of the New York Penn Leauge (Single-A).
• The Kansas City Royals claimed pitcher John Bannister off waivers the Texas Rangers and optioned him to Northwest Arkansas of the Texas League (AA).
• The Toronto Blue Jays purchased the contract of first baseman Randy Ruiz from Las Vegas of the Pacific Coast League (AAA).

Aug 10, 2009

• The Arizona Diamondbacks signed pitcher Daniel Cabrera to a minor league contract and will assign him to Reno of the Pacific Coast League (AAA).
• The Chicago Cubs purchased the contract of pitcher Esmailin Caridad from Iowa of the Pacific Coast League (AAA).
• The Chicago White Sox claimed outfielder Alex Rios off waivers from the Toronto Blue Jays.
• The Pittsburgh Pirates signed pitcher Zack Von Rosenberg.
• The Washington Nationals agreed to terms with infielder Jean Valdez, outfielder Jose Norberto and pitchers Cleto Brazoban, Vidal Paredes, and George Rosa on professional contracts.

Aug 9, 2009

• The Cincinnati Redstraded pitcher David Weathers to Milwaukee Brewers for a player to be named later.
• The Oakland Athletics purchased the contract of pitcher Jay Marshall from Sacramento of the Pacific Coast League (AAA).

Aug 8, 2009

• The Boston Red Sox purchased the contract of pitcher Enrique Gonzalez from Pawtucket of the International League (AAA).
• The Houston Astros purchased the contract of pitcher Yorman Bazardo from Round Rock.
• The New York Yankees purchased the contract of pitcher Josh Towers from Scranton/Wilkes Barre.
• The Tampa Bay Rays claimed pitcher Russ Springer off waivers from the Oakland Athletics.

Aug 7, 2009

• The Baltimore Orioles traded catcher Gregg Zaun to the Tampa Bay Rays for a player to be named later or cash considerations; purchased the contract of catcher Chad Moeller from Norfolk of the International League (AAA).
• The Cleveland Indians traded pitcher Carl Pavano to the Minnesota Twins for a player to be named later.
• The Oakland Athletics released first baseman Jason Giambi.

Aug 6, 2009

• The Washington Nationals traded infielder Anderson Hernandez to the New York Mets for second baseman Greg Veloz.
• The Milwaukee Brewers purchased the contract of pitcher Tom Wilhelmsen.

Aug 5, 2009

• The Chicago Cubs released pitcher Jason Waddell.

Aug 3, 2009

• The New York Mets purchased the contract of pitcher Nelson Figueroa from Buffalo of the International League (AAA).

Aug 1, 2009

• The Washington Nationals purchased the contract of pitcher Jorge Sosa from Syracuse.