Mets manager Carlos Mendoza said that Waddell is dealing with shoulder discomfort and won't pitch in Monday's Grapefruit League game against the Marlins as planned, Laura Albanese of Newsday reports.

The severity of the shoulder issue isn't fully known, but Waddell will likely be shut down for at least a few days. The southpaw resurfaced in the majors last season for the first time since 2021, appearing in 11 games and posting a 3.45 ERA, 1.28 WHIP and 22:11 K:BB over 31.1 innings with the Mets. Waddell no longer occupies a spot on the 40-man roster and is expected to open the season as a swingman at Triple-A Syracuse.

The Marlins optioned White to Triple-A Jacksonville on Sunday.

While he wasn't able to secure a spot on the Marlins' Opening Day roster, White could be a candidate to pitch in high-leverage spots out of the big-league bullpen at some point later this season if he can continue to carry over his success from 2025. Between stops with Jacksonville and Double-A Pensacola last season, the 25-year-old righty was one of the more dominant relief arms in the upper minors thanks to a deceptive high arm slot, finishing with a collective 1.86 ERA, 0.92 WHIP and 107:23 K:BB in 67.2 innings.

Paddack gave up two hits over three scoreless innings in Saturday's Grapefruit League game against the Astros. He struck out two without walking a batter.

The 30-year-old right-hander built up to 40 pitches (27 strikes) against a patchwork lineup headlined by Christian Walker and Isaac Paredes. Paddack's fastball topped out at 95.8 mph, and through six spring innings he has yet to allow a run while posting a 6:1 K:BB. Given his injury-plagued career and 5.22 ERA over 246.1 innings the last two seasons between the Twins and Tigers, however, simply taking a regular turn for the Marlins in 2026 would be an accomplishment.

Holmes gave up two hits and three walks over 2.2 scoreless innings in Saturday's Grapefruit League game against the Orioles. He struck out three.

Facing a mostly young split-squad Baltimore lineup that included Samuel Basallo and Dylan Beavers, Holmes built up to 58 pitches, but only 31 of them were strikes. The 29-year-old right-hander sports a 7:5 K:BB through 7.1 spring innings, and while he hasn't given up a run yet, Holmes' inability to find the strike zone consistently is a little worrying for an Atlanta rotation that can't afford any more attrition with Spencer Schwellenbach (elbow), Hurston Waldrep (elbow) and AJ Smith-Shawver (elbow) all set to miss significant time.

Kerkering (hamstring) threw a bullpen session Saturday, Charlotte Varnes of The Athletic reports.

The right-hander completed his third side session since having his throwing program delayed by a Grade 1 hamstring strain at the start of camp, per MLB.com. Kerkering, who's expected to be one of Philadelphia's primary setup men for closer Jhoan Duran, still has plenty of time to build up in advance of Opening Day.

O'Brien (calf) will throw another live batting practice session Thursday and hopes to make his Grapefruit League debut Saturday, Daniel Guerrero of the St. Louis Post-Dispatch reports.

O'Brien got through a live batting practice session Monday healthy, though he had trouble with his footing due to a wet mound. He'll face hitters in a shorter live BP session Thursday before progressing to game action. O'Brien has been battling a minor calf strain but is expected to have enough time to prep for Opening Day, barring setbacks. He is in the mix to serve as closer for the Cardinals this season.

Miller (back) threw a bullpen session Wednesday and could return to action as soon as next week, Maria Guardado of MLB.com reports.

Miller has yet to make his Cactus League debut this spring due to lower-back tightness, though he's progressing toward a return. The southpaw will aim to start the season at full strength after his 2025 campaign was cut short due to a left elbow injury. Over 36 relief appearances last season, Miller posted a 1.50 ERA, 1.47 WHIP and 22:20 K:BB in 30 innings.

The Reds acquired Nicolas from the Pirates in exchange for Tyler Callihan on Wednesday.

Nicolas will compete for a spot in Cincinnati's bullpen after appearing in 82 games for the Pirates over the past two seasons. Nicolas has a career 4.68 ERA, 1.48 WHIP and 96:53 K:BB across 98 innings of relief.

Sanmartin suffered a minor quadriceps strain during a recent exhibition game appearance for Team Colombia, Susan Slusser of the San Francisco Chronicle reports.

Sanmartin tweaked his quad while fielding a comebacker. The lefty will be forced to pull out of representing his native country in the World Baseball Classic, and he will be reevaluated before it's determined how much time he might miss. Sanmartin was a waiver claim of the Giants back in November.

Atlanta optioned Munoz to Triple-A Gwinnett on Wednesday.

Munoz made only one Grapefruit League appearance, walking three of the five batters he faced. Control problems are nothing new for the righty reliever, as Munoz issued five free passes in 3.2 frames with the big club last season and has a career 11.2 percent walk rate in the minors. He'll open 2026 in the Gwinnett bullpen.