The Orioles announced a series of roster tweaks on Thursday. Baltimore has selected right-hander Anthony Nunez to their 40-man roster. Right-hander Shawn Dubin and outfielders Dylan Carlson and Daniel Johnson have been outrighted off the roster. Left-hander Josh Walker and right-hander Carson Ragsdale were designated for assignment. Baltimore claimed outfielder Pedro Leon off waivers from the Astros, while left-hander Jose Castillo was claimed by the Mets.
The team also exercised its club option on right-hander Andrew Kittredge, whom they acquired from the Cubs earlier this week. The Orioles declined their club option on utilityman Jorge Mateo, who is now a free agent. They also announced the signing of outfielder Leody Taveras, a deal that had been reported yesterday. The litany of moves brought Baltimore’s 40-man roster to 40 players.
Nunez came over at the trade deadline in the Cedric Mullins deal, along with fellow pitching prospects Raimon Gómez and Chandler Marsh. The 24-year-old was originally signed as a shortstop by San Diego in 2019. After a pair of uninspiring seasons at the lowest rungs of the minors, he converted to pitching. The Mets signed Nunez in 2024. He tossed 10 innings between the Complex league and Single-A that season. High-A hitters were no match for Nunez in 2025, as he dominated with a 0.63 ERA and a 46.2% strikeout rate over 14 1/3 innings. Nunez moved to Double-A in May and continued to pitch well, recording a 2.10 ERA over 22 outings. After the trade, he pitched a game for Double-A Chesapeake before heading to Triple-A. Nunez held hitters to a .125 batting average while striking them out at a 32.3% clip over 16 games with Norfolk.
Carlson and Johnson cleared waivers and elected free agency. Dubin also made it through waivers and is a minor league free agent. Carlson is the biggest name of the bunch, but it’s been a while since his days as a top prospect for the Cardinals. Since a strong 2021 campaign with St. Louis, he’s steadily declined at the plate. The 27-year-old bottomed out with a 67 wRC+ over 96 games split between the Cardinals and Rays in 2024. Baltimore took a flyer on him, but he scuffled to a .203/.278/.336 slash line across 241 plate appearances. He’ll now be looking for his fourth team in three seasons.
Johnson has spent parts of four MLB seasons with three teams. Baltimore grabbed him off waivers from San Francisco in August. He went 5-for-24 in 17 games with the Orioles. Dubin was also an August waiver claim, coming over from the Astros. He threw eight innings with Baltimore, pitching to a 3.38 ERA.
Walker has bounced around plenty over the last year and a half. The Mets traded him to the Pirates midway through 2024. He signed with Toronto as a minor league free agent last offseason. The Blue Jays traded him to the Phillies at the end of May. After Philadelphia designated him for assignment in August, the Orioles claimed him off waivers. Walker has a 6.59 ERA across 26 big-league appearances over the past three seasons.
Ragsdale and Castillo are no strangers to waiver claims, including moves that involved each other. Baltimore claimed Ragsdale from San Francisco in August, only to toss him back on the waiver pile when they grabbed Castillo. The Orioles claimed Ragsdale again in September, this time from the Braves.
Houston signed Leon in 2021. He reached Triple-A that same season. Leon slashed .299/.372/.514 with Sugar Land in 2024, leading to a brief call-up. He recorded a pair of hits over seven games with the Astros before heading back to Triple-A. An MCL sprain cost Leon the majority of the 2025 campaign. He played just 25 games this past season.