Two-time All-Star pitcher Walker Buehler, 30, and the Boston Red Sox have agreed on a one-year, $21 million contract, sources told ESPN.

Left-hander Sean Manaea and the Mets are in agreement on a three-year, $75 million contract, sources told ESPN, keeping the veteran with the team he helped lead to a surprise NLCS appearance.

The Guardians traded 1B Josh Naylor to the Diamondbacks and then agreed to a one-year, $12 million deal with free agent veteran Carlos Santana.

Rickey Henderson, the greatest leadoff hitter and base stealer in MLB history, died Friday. He was 65.

The Yankees and first baseman Paul Goldschmidt have reached agreement on a one-year contract worth $12.5 million, sources confirmed to ESPN.

Left-hander Patrick Sandoval and the Red Sox are in agreement on a two-year, $18.25 million contract, sources told ESPN's Jeff Passan.

Outfielder Max Kepler and the Phillies are in agreement on a one-year, $10 million contract, sources told ESPN, confirming an MLB.com report.

How soon could a new ballpark be ready? Will the Rays ever play at Tropicana Field again? Could they relocate? Here's what we know and what remains unknown.

The Cubs have traded Cody Bellinger and cash considerations to the Yankees for right-hander Cody Poteet.

Pitchers are breaking down like never before. Baseball's 62-page report doesn't solve the problem -- but it provides a first step.

Right-hander Tomoyuki Sugano, 35, and the Baltimore Orioles agreed to a contract, the team announced Monday, uniting a Japanese pitcher with a team in need of rotation help, and the deal, sources told ESPN's Jeff Passan, is for one year and $13 million.

The Athletics are acquiring left-hander Jeffrey Springs in a six-player trade with the Rays.

Left-hander Garrett Crochet, who had 209 strikeouts in 146 innings last season, was traded from the White Sox to the Red Sox in exchange for four prospects.

Max Fried and the Yankees agreed to an eight-year, $218 million contract, sources told ESPN on Tuesday, the largest guarantee for a left-handed pitcher.

Closer Jordan Romano and the Phillies are in agreement on a contract.

In choosing the Mets, Soto flipped the script in New York -- and across the sport.

Juan Soto and the Mets are in agreement on a 15-year, $765 million contract, sources told ESPN, the largest deal in professional sports history.

Outfielder Tyler O'Neill and the Orioles have agreed to a 3-year, $49.5 million contract, a source told ESPN, filling a void created by the free agency of slugging outfielder Anthony Santander.

The Giants and shortstop Willy Adames are in agreement on a seven-year, $182 million deal, sources told ESPN.

Japanese right-hander Roki Sasaki is expected to be officially posted at MLB's winter meetings next week, sources told ESPN, opening the window in which teams will try to convince him to choose them.