| May 26, 2010 The New York Yankees agreed to terms with pitcher Chad Gaudin. May 25, 2010The New York Mets claimed infielder Justin Turner off waivers from Baltimore. May 21, 2010The Chicago Cubs signed pitcher Bob Howry and added him to the active roster. The San Diego Padres agreed to terms with infielder Duanel Jones. May 20, 2010The Arizona Diamondbacks agreed to terms with pitcher Luis Ayala on a minor league contract. May 19, 2010The Houston Astros waived infielder Kazuo Matsui. May 18, 2010The Pittsburgh Pirates agreed to terms with pitchers Bryan Almonte, Angel Sanchez, Oderman Rocha, Jose Luis Acosta, outfielder Willy Garcia and first baseman Jose Roman. May 17, 2010The Arizona Diamondbacks acquired pitcher Saul Rivera from Cleveland for cash considerations. May 16, 2010The Tampa Bay Rays agreed to terms with pitcher Ricky Orta on a minor league contract. May 14, 2010The New York Mets signed catcher J.R. House and outfielder Valentino Pascucci to minor league contracts. The New York Yankees claimed pitcher Shane Lindsay off waivers from Colorado; released pitcher Christian Garcia. May 5, 2010The Florida Marlins agreed to terms with first baseman Doug Mientkiewicz on a minor league contract. May 3, 2010The Seattle Mariners released pitcher Ricky Orta. May 2, 2010The Seattle Mariners released outfielder Eric Byrnes. | 
