The Marlins selected Mack's contract from Triple-A Jacksonville on Tuedsay.

Mack is one of Miami's top prospects, so it's no surprise the organization is protecting him from the Rule 5 Draft. The 22-year-old spent most of last season at Triple-A Jacksonville and had a .786 OPS with 18 homers and seven steals in 98 games.

Dodgers general manager Brandon Gomes indicated during last week's GM Meetings that the team hasn't ruled out giving Rushing some reps in the outfield, Jack Harris of the Los Angeles Times reports.

Rushing has made a total of 32 starts in left field in the minors, but 37 of his 38 starts with the Dodgers in 2025 were at catcher and the other came at first base. Catcher and first base remain blocked with the big club, but the left-field job with the Dodgers is open. While it seems unlikely the Dodgers would commit to Rushing as their primary left fielder, the position offers the 24-year-old a potential path to playing time. Rushing struggled in a reserve role with the Dodgers this season, slashing just .204/.258/.324 with a 37.4 percent strikeout rate over 53 regular-season tilts.

The Reds claimed Rortvedt off waivers from the Dodgers on Wednesday.

Rortvedt split 2025 between the Rays and Dodgers, collecting a .152/.240/.205 batting line over 44 regular-season contests. Per Kiley McDaniel of ESPN.com, Rortvedt had avoided arbitration with the Dodgers with a one-year, $1.25 million contract prior to being placed on waivers, and that salary will now be the Reds' responsibility. He does not have minor-league options remaining and the Reds already have Tyler Stephenson and Jose Trevino pegged as their catching duo in 2026, so it's unclear how Rortvedt fits into the picture for Cincinnati.

Atlanta president of baseball operations Alex Anthopoulos said Wednesday that the team will have a better idea by January as to how far along Murphy (hip) is in his rehab, David O'Brien of The Athletic reports.

Murphy had surgery in September to repair a right hip labral tear, an injury he admitted to dealing with off-and-on for the past three years. Atlanta is hopeful that Murphy will be ready to go for the start of next season, and if that's the case, it expects him to split catching and designated hitter duties with Drake Baldwin. Murphy has slashed a disappointing .197/.293/.384 while averaging only 83 games over the last two regular seasons, but he could bounce back in 2026, if healthy.

Alfonzo agreed to a minor-league contract with the Dodgers on Monday, Jon Heyman of the New York Post reports.

Alfonzo spent the majority of his 2025 campaign in the Tigers' organization, appearing in 57 games for Double-A Erie and eight for Triple-A Toledo. He slashed .247/.297/.322 with one home run, 34 RBI and 24 runs scored in 65 appearances across the two levels.

Baldwin was named the Jackie Robinson National League Rookie of the Year on Monday.

Baldwin won the award comfortably, receiving 21 of 30 first-place votes to beat out Cade Horton, who got nine first-place votes. Baldwin was a valuable bat for Atlanta throughout the 2025 campaign, slashing .274/.341/.469 with 19 home runs, 80 RBI and 56 runs scored in 124 games. He becomes the first catcher to win Rookie of the Year since 2010 when Buster Posey took home the hardware, per Grant McAuley of the Marietta Daily Journal.

Atlanta outrighted Robinson to Triple-A Gwinnett on Thursday.

He'll have the opportunity to elect free agency if he wants. Robinson holds a career .131/.169/.192 slash line over 138 plate appearances in parts of three seasons in the majors.

The Marlins outrighted Navarreto to Triple-A Jacksonville on Wednesday.

Having been outrighted before, Navarreto can reject Wednesday's outright assignment and become a free agent if he wants. The catcher went 4-for-14 at the dish during his brief time with Miami in 2025.

Contreras underwent a minor procedure on his fractured left middle finger Tuesday, Adam McCalvy of MLB.com reports.

General manager Matt Arnold said Contreras is roughly 5-to-6 weeks away from resuming baseball activity, so his surgery isn't expected to affect Contreras' availability for the start of the 2026 season. The 27-year-old backstop also had his $12 million club option declined Tuesday after posting a .754 OPS in the regular season -- his worst as a Brewer. However, he will remain under team control as an arbitration-eligible player.

The Brewers declined Contreras' $12 million option for 2026.

Contreras will receive a $100,000 buyout instead, and he remains under team control for 2026 and 2027 as an arbitration-eligible player. The catcher slashed .260/.355/.399 with 17 home runs over 150 regular-season games for the Brewers in 2025. Contreras was scheduled to visit a hand specialist last week to determine whether he needs surgery to repair a fractured left middle finger, but there's no word on whether an operation is required. Even if he does have surgery, his availability for spring training is not expected to be in peril.