Oct 9, 2020

• The Oakland Athletics activated RHP James Kaprielian.
• The Houston Astros announced RHP Joe Biagini selected free agency in lieu of outright assignment to Round Rock (PCL).
• The Miami Marlins activated INF Lewin Diaz, OFs Starling Marte and Jesus Sanchez, RHPs Edward Cabrera, Robert Dugger, Jorge Guzman, Jesus Sanchez, Johan Quezada, Jordan Yamamoto, Josh A. Smith and Jose Urena, LHPs Stephen Tarpley and Alex Vesia from alternate training site.
• The San Diego Padres activated RHPs David Bednar, Dinelson Lamet, Michel Baez, Javy Guerra, Luis Perdomo and Taylor Williams, LHP Joey Lucchesi, C Francisco Mejia, OF Jorge Ona, INFs Greg Garcia and Jorge Mateo from alternate training site.
• The Washington Nationals activated C Tres Barrera from the restricted list. Sent RHP Paolo Espino, SS Adrian Sanchez, RHP Austen Williams and RHP Aaron Bennett outright to Fresno Grizzlies.

Oct 8, 2020

• The Seattle Mariners announced Tim Wilson to be director of grounds.
• The Tampa Bay Rays activated RHP Trevor Richards added to roster. Placed RHP Oliver Drake on 10-day IL.

Oct 7, 2020

• The Cincinnati Reds announced Dick Williams has resigned as president of baseball operations.
• The Pittsburgh Pirates signed RHP Po-Yu Chen.

Oct 6, 2020

• The Atlanta Braves reassigned INFs Johan Camargo and William Contreras to the minor leagues. Activated RHPs Bryse Wilson and Huascar Ynoa.
• The Los Angeles Dodgers activated INF Gavin Lux and RHP Dylan Floro. Reassigned INFs Keibert Ruiz and Edwin Rose to the minor leagues.
• The Miami Marlins activated LHP Daniel Castano and RHP Nick Vincent. Reassigned INF Lewin Diaz, OF Starling Marte and LHP Stephen Tarpley to the minor leagues. Selected the contract of INF Sean Rodriguez from alternate training site.
• The San Diego Padres reassigned RHP Dan Altavilla and INFs Jorge Mateo and Greg Garcia to the minor leagues. Activated RHP Mike Clevinger and OF Greg Allen. Designated OF Abraham Almonte for assignment. Selected the contract of LHP Ryan Weathers from Fort Wayne (Midwest League).
• The New York Yankees reassigned RHP Domingo German to the minor leagues.
• The Houston Texans sent RHP Joe Biagini outright to Round Rock (PCL).
• The Texas Rangers announced pitching coach Julio Rangel and catching coach Hector Ortiz will not be returning for 2021 season.

Oct 5, 2020

• The Houston Astros reassigned INF Jack Mayfield to the minor leagues. Activated RHP Luis Garcia.
• The New York Yankees activated RHP Michael King. Reassigned C Erik Kratz to the minor leagues.
• The Oakland Athletics reassigned INF Vimael Machin to the minor leagues. Activated RHP Jordan Weems.
• The Tampa Bay Rays activated OF Austin Meadows. Reassigned INF Nate Lowe to the minor leagues.

Oct 4, 2020

• The Washington Nationals announced pitching coach Paul Menhart will not return for the 2021 season.

Oct 3, 2020

• The Chicago Cubs activated LHPs Rex Brothers, Brailyn Marquez and Justin Steele, RHPs Tyler Chatwood, Tyson Miller, Colin Rea, Duane Underwood Jr., Dillon Maples and Rowan Wick, CF Albert Almora Jr., 1B Jose Martinez and C Miguel Amaya from alternate training site.
• The St. Louis Cardinals activated RHPs Junior Fernandez, Seth Elledge, Nabil Crosmatt and Jake Woodford, 3B Elehuris Montero, 2B Max Schrock, 1B John Nogowski and SS Edmundo Sosa, CF Lane Thomas and LF Justin Williams from alternate training site. Activated RHP Carlos Martinez from the 10-day IL.
• The Philadelphia Phillies announced Matt Klentak stepped down as general manager.

Oct 2, 2020

• The Chicago White Sox activated RHPs Reynaldo Lopez, Zach Burdi, Jose Ruiz and Jonathan Stiever, LHPs Bernardo Flores Jr. and Gio Gonzalez, OF Micker Adolfo, Blake Rutherford and Luis Gonzalez, Cs Yermin Mercedes and Seby Zavala and SS Danny Mendick from alternate training site. Sent RHP Alex McRae outright to alternate training site.
• The Cincinnati Reds activated RHPs R.J. Alaniz, Jose De Leon, Joel Kuhnel, Anthony DeSclafani, Ryan Hendrix, Tony Santillan and Sal Romano, LHP Jesse Biddle, 2Bs Alex Blandino and Robel Garcia, LF Mark Payton and C Tyler Stephenson from alternate training site.
• The Milwaukee Brewers activated RHPs Corbin Burnes, Phil Bickford, J.P. Feyereisen, Bobby Wahl and Devin Williams, LHPs Brett Anderson, Eric Lauer and Angel Perdomo, 2B Mark Mathias, OFs Billy McKinney and Corey Ray and C Many Pina from altenate training site.
• The Texas Rangers sent 3B Yadiel Rivera outright to alternate training site.
• The Chicago Cubs sent LHP Josh Osich outright to alternate training site.

Oct 1, 2020

• The Cleveland Indians activated LF Jake Bauers, RF Daniel Johnson, 1B Bobby Bradley, LHPs Sam Hentges, Logan Allen, Scott Moss and Kyle Nelson, RHPs Jean Carlos Mejia and Adam Plutko, SS Yu Chang and C Beau Taylor from alternate training site. Activated RHP Emmanuel Clase from restricted list.
• The Minnesota Twins activated 2B Travis Blankenhorn, 3B Josh Donaldson, RHPs Jorge Alcala, Dakota Chalmers and Jhoan Duran, LHPs Rich Hill, Devin Smeltzer and Lewis Thorpe, CF Gilberto Celestino and OF Brent Rooker from alternate training site.
• The Toronto Blue Jays activated RHPs Sean Reid-Foley, Elvis Luciano, Julian Merryweather, Patrick Murphy, Tanner Roark, Jordan Romano, Jacob Waguespack, Hector Perez, Shun Yamaguchi, T.J. Zeuch and OF Derek Fisher from alternate training site.
• The Tampa Bay Rays sent LHP Sean Gilmartin outright to alternate training site.
• The Pittsburgh Pirates claimed RHP Sean Poppen off waivers from Minnesota. Designated SS J.T. Riddle for assignment.
• The Arizona Diamondbacks designated LHP Joe Mantiply for assignment.