Oct 31, 2018

• The Chicago Cubs exercised the 2019 option on LHP Jose Quintana. Claimed LHP Jerry Vasto off waivers from Kansas City. Agreed on two-year player development contract extensions with Iowa (PCL), Tennessee (SL), Myrtle Beach (Carolina) and South Bend (MWL).
• The Cleveland Indians agreed to terms with OF Leonys Martin on a one-year contract.
• The Houston Astros declined their 2019 option on C Brian McCann. Announced RHP Jandel Gustave refused an outright assignment to Round Rock (PCL) and elected to become a free agent.
• The Kansas City Royals announced RHP Nate Karns declined outright assignment to Omaha (PCL), making him a free agent. Agreed to terms with RHP Wily Peralta on a one-year contract.
• The Milwaukee Brewers declined their 2019 option on RHP Jordan Lyles. Announced the resignation of pitching coach Derek Johnson.
• The Minnesota Twins claimed OF Michael Reed off waivers from Atlanta.
• The New York Yankees declined the 2019 option on OF Brett Gardner and agreed to terms with him on a one-year contract.
• The Oakland Athletics exercised their 2019 option on RHP Fernando Rodney.
• The Pittsburgh Pirates declined their 2019 options on 2B Josh Harrison and 3B Jung Ho Kang.
• The San Diego Padres named Rod Barajas bench coach, Damion Easley infielders coach and assistant hitting coach, Johnny Washington hitting coach, Darren Balsley pitching coach, bullpen coach Doug Bochtler, third base coach Glenn Hoffman and first base coach Skip Schumaker.
• The Seattle Mariners claimed OF John Andreoli off waivers from Baltimore.

Oct 30, 2018

• The Baltimore Orioles agreed to terms with OF J'Rudjeanon Isenia on a minor league contract.
• The Boston Red Sox exercised their 2019 option on LHP Chris Sale and INF Eduardo Nunez exercised his 2019 player option.
• The Chicago Cubs declined their 2019 option on RHP Brandon Kintzler.
• The Cleveland Indians exercised their 2019 option on RHP Carlos Carrasco. Declined their 2019 contract option on OF Brandon Guyer.
• The Colorado Rockies declined their option on OF Gerardo Parra.
• The Kansas City Royals declined mutual option with RHP Jason Hammel.
• The Milwaukee Brewers announced 3B Mike Moustakas and RHP Joakim Soria declined mutual contract options. Exercised their 2019 contract option on RHP Jeremy Jeffress.
• The Minnesota Twins declined their 2019 options on RHP Ervin Santana and 1B Logan Morrison.
• The Seattle Mariners reassigned hitting coach Edgar Martinez to organizational hitting adviser. Declined club half of OF Denard Span's mutual contract option for 2019.

Oct 29, 2018

• The Chicago White Sox exercised their 2019 option on RHP Nate Jones. Declined their 2019 option on RHP James Shields, making him a free agent.
• The New York Mets named Brodie Van Wagenen general manager.
• The Oakland Athletics agreed to terms with executive vice president of baseball operations Billy Beane, general manager David Forst and manager Bob Melvin on contract extensions.
• The San Francisco Giants exercised their 2019 options on LHP Madison Bumgarner and INF Pable Sandoval.
• The St. Louis Cardinals named Jeff Albert hitting coach and Stubby Clapp first base coach. Agreed to terms with RHP Adam Wainwright on one-year contract.
• The Washington Nationals exercised their club option for 2019 on LHP Sean Doolittle.

Oct 25, 2018

• The Arizona Diamondbacks claimed RHP Artie Lewicki off waivers from Detroit.
• The Baltimore Orioles agreed to terms with SS Gilbert Machado, RHP Kevin LaRoche and OFs Kevin Infante and Angel Gomez on minor league contracts.
• The Milwaukee Brewers fired pitching coach Lee Tunnell and trainer Dan Wright. Announced the resignation of hitting coach Darnell Coles.
• The Minnesota Twins named Rocco Baldelli manager.
• The Philadelphia Phillies named Josh Bonifay director of player development.
• The Texas Rangers announced the retirement of trainer Kevin Harmon. Promoted Matt Lucero to head trainer.
• The Toronto Blue Jays named Charlie Montoyo manager and agreed to terms on a three-year contract.

Oct 23, 2018

• The Boston Red Sox dropped RHP Brandon Workman from the active roster. Added LHP Drew Pomeranz to the World Series roster.
• The Los Angeles Dodgers dropped LHP Caleb Ferguson from the active roster. Added LHP Scott Alexander to the World Series roster.

Oct 22, 2018

• The Arizona Diamondbacks agreed to terms with INF Eduardo Escobar on a three-year contract through the 2021 season.
• The Miami Marlins signed OFs Victor Victor Mesa and Victor Mesa Jr. to minor league contracts.