May 31, 2018

• The Boston Red Sox released 1B Hanley Ramirez.
• The Tampa Bay Rays traded C Curt Casali to Cincinnati for cash.
• The Tampa Bay Rays traded C Curt Casali to Cincinnati for cash.

May 30, 2018

• The Detroit Tigers released RHP Gerson Moreno.
• The Minnesota Twins traded RHP Myles Jaye to Cleveland for cash.

May 28, 2018

• The Arizona Diamondbacks announced RHP Kris Medlen will retire.
• The Minnesota Twins claimed INF Taylor Motter off waivers from Seattle and assigned him to Rochester (IL).
• The San Francisco Giants signed RHP Taylor Hill and C Ryan Hanigan to minor league contracts.
• The Texas Rangers released RHP Kevin Jepsen.

May 27, 2018

• The Minnesota Twins traded RHP Phil Hughes, cash and the 74th overall draft pick in 2018 to San Diego for C Janigson Villalobos.

May 25, 2018

• The Colorado Rockies signed 3B Nelson Molina to a minor league contract.
• The Los Angeles Angels announced 3B Ryan Schimpf cleared waivers was unconditionally released.
• The New York Yankees traded C Erik Kratz to Milwaukee for a player to be named or cash considerations. Released 1B-OF Adam Lind from Scranton/Wilkes-Barre (IL). Signed C Wilkin Castillo to a minor league contract.
• The Oakland Athletics traded RHP Wilmer Font to Tampa Bay Rays for RHP Peter Bayer.
• The Tampa Bay Rays acquired RHPs Andrew Moore and Tommy Romero from the Seattle Mariners for RHP Alex Colome, OF Denard Span and cash considerations.

May 24, 2018

• The Atlanta Braves signed SS Luis Marte to a minor league contract.
• The Chicago White Sox claimed C Dustin Garneau off waivers from Oakland.
• The Washington Nationals signed OF Adam Brett Walker to a minor league contract.

May 23, 2018

• The Chicago White Sox signed OF Alex Presley to a minor league contract.
• The New York Yankees signed LHP Ryan Bollinger to a one-year contract and sent to Trenton (EL).
• The Washington Nationals signed LHP Josh Edgin to a minor league contract.

May 22, 2018

• The Chicago White Sox signed OF Michael Saunders to a minor league contract.
• The Detroit Tigers signed LHP Kevin Chapman to a minor league contract.
• The Houston Astros released 1B Jon Singleton.
• The Los Angeles Angels released INF Ryan Schimpf. Traded 1B Chris Carter to Minnesota Twins for cash.
• The Miami Marlins released RHP Junichi Tazawa.
• The New York Mets signed OF Jose Bautista to a one-year contract.
• The Washington Nationals signed OF Jaff Decker to a minor league contract

May 20, 2018

• The Atlanta Braves released 3B Jose Bautista.
• The Colorado Rockies signed RHP Braxton Lorenzini to a minor league contract.
• The Oakland Athletics claimed RHP Carlos Ramirez from Toronto.

May 19, 2018

• The Los Angeles Dodgers released LHP Henry Owens.
• The New York Yankees signed RHP David Hale to a minor league contract.

May 18, 2018

• The Los Angeles Dodgers signed OF Tyler Goeddel to a minor league contract. Claimed RHP Erik Goeddel off waivers from Seattle.
• The New York Mets signed INF Christian Colon and OF Ezequiel Carrera to minor league contract
• The New York Yankees announced RHP David Hale elected free agency in lieu of accepting an outright assignment.
• The San Diego Padres released 3B Chase Headley.
• The Texas Rangers signed INF Cliff Pennington to a minor league contract .

May 16, 2018

• The Cleveland Indians signed RHP Matt Belisle to a minor league contract.
• The Miami Marlins named Elisa Padilla senior vice president of marketing and community relations, Travis Apple vice president of ticket sales and service and Michael Shaw vice president/head of customer engagement.

May 15, 2018

• The Atlanta Braves claimed LHP Chad Bell off waivers from Detroit Tigers and optioned him to Gwinnett (IL).
• The Baltimore Orioles announced INF Renato Nunez cleared waivers and was assigned outright to Norfolk (IL).
• The Boston Red Sox acquired LHP Josh Taylor from the Arizona Diamondbacks to complete the trade for INF Deven Marrero.

May 13, 2018

• The Baltimore Orioles claimed INF Renato Nunez off waivers from Texas.
• The Colorado Rockies signed a two-year player development contract extension with Asheville (SAL).

May 10, 2018

• The Cincinnati Reds promoted Nick Krall to general manager.
• The Miami Marlins agreed to terms with CF Anfernee Seymour on a minor league contract.
• The Milwaukee Brewers named Jason Hartlund chief revenue officer. Agreed to terms with 2B Darren Seferina on a minor league contract.

May 9, 2018

• The Cleveland Indians traded 3B Gio Urshela to Toronto for a player to be named or cash.
• The Minnesota Twins traded LHP Anthony McIver to Seattle Mariners for cash.

May 8, 2018

• The New York Mets traded RHP Matt Harvey to Cincinnati for C Devin Mesoraco.

May 7, 2018

• The San Francisco Giants signed C Ryan Hanigan to a minor league contract.
• The Seattle Mariners signed RHP Tucker Healy to a minor league contract.
• The Texas Rangers acquired RHP Emmanuel Clase from San Diego as the player to be named in the April 6 trade for C Brett Nicholas.

May 6, 2018

• The Los Angeles Dodgers signed SS Danny Espinosa to a minor league contract.

May 5, 2018

• The Arizona Diamondbacks agreed to terms with RHP Clay Buchholz on a minor league contract.
• The Cleveland Indians acquired RHP Oliver Drake from Milwaukee for cash considerations and added him to the major league roster.
• The Milwaukee Brewers traded RHP Oliver Drake to the Cleveland Indians for cash.

May 2, 2018

• The Atlanta Braves signed OF Peter Bourjos to a minor league contract.
• The Milwaukee Brewers signed RHP Paolo Espino to a minor league contract and assigned him to extended spring training.
• The Texas Rangers claimed C Carlos Perez off waivers from Atlanta.

May 1, 2018

• The Arizona Diamondbacks traded LHP Colin Poche and RHP Sam McWilliams to Tampa Bay Rays to complete an earlier trade for OF Steven Souza.
• The Kansas City Royals released RHP Clay Buchholz from a minor league contract.
• The New York Yankees agreed to terms with RHP David Hale on a minor league contract.