Williams agreed to a three-year contract with the Mets on Monday, Will Sammon of The Athletic reports.

Williams will remain in New York but is headed to Queens following Monday's signing. The 31-year-old had his fair share of struggles with the Yankees during the 2025 campaign, ending the year with four blown saves in 22 chances and ultimately losing his grip on the closer's role. He finished the regular season with a 4.79 ERA and 1.13 WHIP with a 90:25 K:BB across 62.0 frames. Williams will receive a fresh start with the Mets on a deal that will guarantee him more than $50 million, per Jeff Passan of ESPN.com.

Valdez (shoulder) has returned to game action with the Estrellas Orientales in the Dominican Winter League, Alex Stumpf of MLB.com reports.

Valdez underwent season-ending surgery in May to repair a dislocated left shoulder, but he's played three winter ball games and smacked a grand slam in his third contest for Estrellas on Sunday. Slated to turn 27 later this month, Valdez slashed .209/.294/.363 with two home runs and an 11:16 BB:K over 102 plate appearances for Pittsburgh before getting hurt. It seems Valdez will ready to roll for the start of spring training and he'll compete for a spot on the Pirates' Opening Day roster in 2026.

The Rockies signed Lopez to a minor-league contract with an invitation to spring training Monday, Kevin Henry of The Denver Gazette reports.

Lopez spent most of the 2025 season in the minors but did see action in 18 games between the Cubs and Angels, going just 1-for-24 at the plate. Most of Lopez's experience is at second base, and the Rockies have an opening at that position, but if the 30-year-old manages to crack the Opening Day roster, it will likely be in a reserve infielder role.

According to sources, McCarthy or Alek Thomas will likely be traded during the offseason, Nick Piecoro of the Arizona Republic reports.

The Diamondbacks would experience a cost savings by moving one of these arbitration-eligible center fielders and using a younger player as the backup. McCarthy has been the more dangerous hitter, while Thomas is considered the better glove. Among the potential replacements are Blaze Alexander, Jorge Barrosa and Tim Tawa. Jordan Lawlar, who is blocked at shortstop by Geraldo Perdomo and didn't handle third base well during a September cameo in 2025, has played a handful of games in center field during winter ball and is also an option.

According to sources, Thomas or Jake McCarthy will likely be traded during the offseason, Nick Piecoro of the Arizona Republic reports.

The Diamondbacks haven't determined which player will stay or go, but there are cost savings to be had. Thomas is considered the better defender while McCarthy has been more productive with a bat in hand, but neither has taken hold of the everyday job in center field. Potential replacements include Blaze Alexander, Jorge Barrosa and Tim Tawa. Jordan Lawlar, who has played a handful of games in center field during winter ball, is also an option.

Walker said earlier this week that he "found something" with his swing while working at Driveline Baseball in October that was "real exciting," Derrick Goold of the St. Louis Post-Dispatch reports.

Walker's assessment at Driveline determined that his back hip was collapsing on his swing, which caused him to drift forward and sap him of his power. He was put through drills with resistance bands and swing training that help him keep his hip back, and Walker said he feels like "I can crush anything they throw at me." In addition to his work at Driveline, Walker has also been given meal-prep and nutrition plans and gone through a strength and agility training plan given to him at Cressey Sports Performance, which focuses on flexibility. After slashing just .211/.270/.324 over the last two seasons and spending time in the minors both years to work on his swing, Walker knows he needs to show real progress in 2026, and it seems he's putting in the work to help him reach that goal. The rebuilding Cardinals plan to give the 23-year-old regular playing time in right field in 2026.

The Giants signed Hentges (shoulder/knee) to a one-year, $1.4 million contract Thursday, Robert Murray of FanSided.com reports.

Non-tendered by the Guardians last week, Hentges missed the entire 2025 season while recovering from left shoulder surgery and also underwent arthroscopic right knee surgery in September. The expectation is that he will be ready for spring training. Hentges could be a weapon for the Giants if he can regain his pre-surgery form, as he held a 2.93 ERA and 155:42 K:BB over 138 regular-season innings from 2022-to-2024 after being moved to a relief role.

The Marlins re-signed Zuber to a minor-league contract Wednesday.

Zuber got into 10 games between the Mets and Marlins in 2025, yielding 15 runs over 12 frames. The 30-year-old reliever has a career 6.26 ERA at the big-league level but has struck out 73 across 64.2 innings. Zuber is likely to start next season at Triple-A Jacksonville.

Atlanta signed Hicklen to a minor-league contract Tuesday.

Hicklen got into one game with the Tigers in 2025 but spent nearly all of the season in the minors, slashing .221/.318/.403 with 16 homers and 25 steals over 95 contests. The outfielder will turn 30 in February and is likely to begin next season at Triple-A Gwinnett.

Atlanta president of baseball operations Alex Anthopoulos said last week that Jimenez recently underwent a cleanup procedure on his left knee, David O'Brien of The Athletic reports.

Jimenez had surgery last November to address cartilage damage in the knee, and he wound up requiring another operation on the same knee following a setback. The reliever missed the entire 2025 season, and Anthopoulos noted that a timetable for Jimenez won't become clearer until late December or January. Jimenez -- who is owed $9 million in 2026 in his final year under contract -- boasts a 2.81 ERA, 30.1 percent strikeout rate and 7.2 percent walk rate in his two regular seasons with Atlanta and should be in line for high-leverage bullpen work in 2026, if healthy.