Atlanta claimed Molina off waivers from the Rockies on Friday.

Molina holds an ugly 6.96 ERA over 52 appearances at the major-league level after being taken in the Rule 5 Draft two years ago. The 23-year-old has primarily been used as a starter in the minors and will likely begin the 2026 campaign as rotation depth at Triple-A Gwinnett.

Atlanta claimed Bido off waivers from the Athletics on Friday.

Bido flashed promise for the Athletics in 2024 with a 3.41 ERA and 24.3 percent strikeout rate, but he fell off to a 5.87 ERA and 18.7 percent strikeout rate in 2025. The 30-year-old does not have minor-league options remaining and will likely begin the 2026 season in a long-relief role with Atlanta, but he could make some starts for them.

The Pirates claimed Luciano off waivers from the Giants on Friday, Kevin Gorman of TribLive.com reports.

Luciano was one of the top prospects in baseball a few years ago, but he has not progressed as hoped, slashing just .217/.286/.304 over 41 games in the majors and .227/.351/.401 at the Triple-A level. He's still just 24, though, so the Pirates felt he was worth a roll of the dice. Luciano -- who does not have minor-league options remaining -- has primarily been a shortstop but shifted to left field at Triple-A Sacramento in 2025. It's unclear at this point what position the Pirates have planned for him.

The Orioles claimed Robertson off waivers from the Pirates on Friday, Jake Rill of MLB.com reports.

The 27-year-old outfielder made his big-league debut in 2025 for Toronto and also saw time for the White Sox before being claimed earlier this offseason by Pittsburgh. The lefty hitter slashed .289/.387/.571 with 20 home runs in 89 games at Triple-A in 2025. He has multiple minor-league option years remaining, so Robertson will likely open the year at Triple-A.

The Mets claimed Criswell off waivers from the Red Sox on Friday, Jorge Castillo of ESPN.com reports.

Criswell had been designated for assignment following Boston's five-player trade with Pittsburgh on Thursday. The 29-year-old has been a useful swingman for the Red Sox the last two seasons, holding a 4.00 ERA and 82:36 K:BB over 117 innings covering 19 starts and 14 relief appearances. Criswell does not have minor-league options remaining but is not yet arbitration-eligible, so the Mets will have several years of control of the righty.

The Giants have hired Casali as an advisor to baseball operations.

Casali was released by Atlanta during spring training last year and never caught on with another team. Now, it appears the 37-year-old's playing career is officially over. He slashed .218/.312/.369 over parts of 11 major-league seasons.

The Diamondbacks re-signed Rashi to a minor-league contract with an invitation to spring training Friday.

Arizona non-tendered Rashi last month, but he'll return to the organization. Slated to turn 30 in January, Rashi posted a 4.41 ERA and 22:8 K:BB across 16.1 innings with the Diamondbacks in 2025.

Castellanos said Friday that he would "really welcome" playing first base if asked, MLB Network reports.

Castellanos has never played first base before and has been a full-time right fielder since 2018. However, he came up through the minors as a third baseman and that was his primary position through his first five seasons in the big leagues, so he's not foreign to the infield. Castellanos is set to make $20 million in 2026 in his final year under contract with the Phillies, but the expectation is he will be either traded or released by Philadelphia this offseason.

The Red Sox designated Criswell for assignment Thursday, Chris Cotillo of MassLive.com reports.

The Red Sox re-signed Criswell to a one-year contract in early November, but he'll lose his roster spot less than one month later. He spent the majority of the 2025 season with Triple-A Worcester and should have the chance to contribute as a reliever at some point in 2026 if he sticks with the organization.

Samaniego was traded along with Johan Oviedo and Adonys Guzman from the Pirates to the Red Sox in exchange for Jhostynxon Garcia and Jesus Travieso on Thursday, Jeff Passan of ESPN.com reports.

The Pirates added Samaniego to the 40-man roster in mid-November, but he'll now try to reach the majors with the Red Sox. He'll be entering his age-27 season and has yet to pitch above Double-A, though he did post a strong 3.08 ERA and 0.92 WHIP across 26.1 innings with Altoona while working exclusively as a reliever. Samaniego is a strong candidate to begin the 2026 season with Triple-A Worcester, but he could provide depth to the Boston bullpen at some point in 2026.