Sep 29, 2023

• The Colorado Rockies agreed to terms with OF Charlie Blackmon on a one-year contract for 2024.
• The Minnesota Twins released RHP Dylan Floro.
• The San Francisco Giants dismissed Manager Gabe Kapler.
• The Detroit Tigers named Miguel Cabrera special assistant to the team president.

Sep 27, 2023

• The Cincinnati Reds released SS Kevin Newman.

Sep 24, 2023

• The Pittsburgh Pirates added RHP Cody Bolton to the taxi squad.

Sep 22, 2023

• The Chicago White Sox named Josh Barfield assistant general manager, Brian Bannister senior advisor to pitching and Gene Watson director of player personnel.

Sep 21, 2023

• The San Francisco Giants released INF Paul DeJong.
• The Cincinnati Reds released RF Hunter Renfroe.
• The Kansas City Royals promoted Danny Ontiveros to vice president of scouting. Named Brian Bridges director of amateur scouting. Jim Cuthbert director of pro personnel & strategy and Daniel Guerrero director of international scouting.
• The Detroit Tigers named Jeff Greenberg general manager.

Sep 19, 2023

• The Miami Marlins claimed LHP Matt Moore off waivers from Cleveland.

Sep 17, 2023

• The New York Mets announced the retirement of RHP Bartolo Colon.

Sep 16, 2023

• The Cincinnati Reds released LHP Chasen Shreve.

Sep 15, 2023

• The Baltimore Orioles announced the retirement of CF Adam Jones.

Sep 14, 2023

• The New York Mets claimed LHP Anthony Kay off waivers from the Chicago Cubs.
• The Boston Red Sox announced the departure of chief baseball officer Chaim Bloom.
• The Baltimore Orioles promoted Greg Bader to executive vice president and chief operating officer and named Kerry Watson executive vice president of public affairs and Lisa Tolson senior vice president and chief people officer.

Sep 13, 2023

• The Washington Nationals agreed to terms with president of baseball operations and general manager Mike Rizzo on a multi-year contract extension.

Sep 12, 2023

• The New York Yankees claimed RHP Luke Weaver off waivers from Seattle.

Sep 9, 2023

• The Arizona Diamondbacks released SS Nick Ahmed.
• The Oakland Athletics claimed 3B Buddy Kennedy of waivers from Arizona and optioned him to Las Vegas (PCL).

Sep 8, 2023

• The Colorado Rockies agreed to terms with RHP German Marquez on a two-year contract extension.

Sep 7, 2023

• The San Diego Padres claimed RHP Glenn Otto off waivers from Texas.

Sep 6, 2023

• The Arizona Diamondbacks claimed C Seby Zavala off waivers from the Chicago White Sox.

Sep 5, 2023

• The Cincinnati Reds agreed to terms with RHP Denis Correa on a minor league contract.
• The Chicago White Sox claimed RHP Yohan Ramirez off waivers from Pittsburgh.
• The Atlanta Braves claimed SS Andrew Velazquez off waivers from the Los Angeles Dodgers and optioned him to Gwinnett.

Sep 4, 2023

• The Boston Red Sox claimed RHP Logan Gillaspie off waivers from Baltimore and optioned him to Worcester (IL).
• The Houston Astros claimed LHP Bennett Sousa off waivers from Detroit.

Sep 2, 2023

• The St. Louis Cardinals claimed OF Michael Siani off waivers from Cincinnati and optioned him to Memphis (IL).
• The New York Mets claimed RHP Peyton Battenfield off waivers from Cleveland and optioned him to Syracuse (IL).
• The Miami Marlins claimed RHP Jorge Lopez off waivers from Baltimore.
• The Oakland Athletics claimed RHP Devin Sweet from Seattle and optioned him to Las Vegas (PCL).
• The Baltimore Orioles claimed RHP Jorge Lopez off waivers from Miami.

Sep 1, 2023

• The New York Yankees agreed to terms with OF Jasson Dominguez and C Austen Wells.